The first thought that come to me is this:
Establish a habit of "one-on-one time" at the same time every day.
(We do it right before pajama time, perhaps the specific time of day does not matter).
Let me explain: We had a lot of sleep issues with our 1- and 3 year olds. We hired a sleep consultant who was great had many concrete and effective suggestions.
Many of them helped with much more than just sleep issues -- one-on-one time is one of those generally useful suggestions.
One-on-one time is a period of, say, 10 to 15 minutes every night where you are giving your child full undivided attention and they chose the activity that you do together, e.g. play with blocks, train set, play a game, or - if they ask for it - read them a book. As long as the activity is safe (probably not TV and not overly activating/exciting, assuming it is near bedtime), this is a way to really make sure you give your child quality time. It's at the same time every night and the same duration - use a timer. I am amazed at how well kids comply with limits set by timers. Consistency is important.
It's like this: you have to give to get. If you are going to impose restrictions (like "please don't pull my clothes") you'll need to be sure you're giving a little in return. Now, I may be completely off base here. You may be showering you child with plenty of one on one attention already. If so, apologies for the unwarranted advice. But in my experience, we are all so busy, we very often have "quality time" for our kids. We do not realize it, but such quality time falls by the wayside. We do the necessities of feeding, dressing, bathing etc but children need more than that. If you work in the daytime (as both my wife and I do) that quality time gets lost in the shuffle. Over a short time, our kids really liked one on one time and would be upset if we could not give it to them. We had the distinct sense that giving them that attention softened their resistance to the behavioral changes we wanted to them to make, regarding going to sleep without a fuss.
So, in summary: consider trying one-on-one time. That may soften the ground so that your child may be more willing to heed your request to stop pulling clothes. My intuition is that the child may want attention and feels they not getting enough. As a result, they go for negative attention. Thus, if you establish one on one time, it may fill the void that they feel and thus cause them to stop seeking negative attention. In addition, it may make them more willing to follow your requests to stop pulling your clothes.
Well, I hope this helps, and if it is off-base for you I hope that it at least helps someone else out there.