He is small in size about 4" would this help him being a smaller fish.
Basically, no. And in our opinion your tank is not large enough for that fish.
Which "our" opinion are you referring to? Looked at Sticky in RC, and recommendation is Acanthurus lineatus Lined or Clown Surgeonfish 240 gallon.
At 265 gallons the OP should be fine based on the RC recommended tank size for this fish. I also think if he stocks appropriately he should have a happy, long lived fish. I would have to say, if this fish is really attractive to you, then take the normal precautions as related to potentially aggressive fish, and buy the fish.
SV