[...] any issues the team have when helping me deliver work have to go through me, I then bring it to the attention to my boss

You pretty much answer your own question, in my opinion.

Talk to your boss, if you're not this employee's manager it is definitely the right thing to do.

He'll tell you if he thinks this is something you have to do on your own, or he'll tell you that he'll take it from there, which he should, if you believe this behavior is causing problems.

[...] any issues the team have when helping me deliver work have to go through me, I then bring it to the attention to my boss

You pretty much answer your own question, in my opinion.

Talk to your boss, if you're not this employee's manager it is definitely the right thing to do.

He'll tell you if he thinks this is something you have to handle, or he'll tell you that he'll take it from there, which he should, if you believe this behavior is causing problems.