Paddy right to enter bar (5)
I believe the answer is:
strop
'paddy' is the definition.
(I've seen this before)
'right to enter bar' is the wordplay.
'right' becomes 'r' (common abbreviation).
'to enter' is an insertion indicator.
'bar' becomes 'stop' (I've seen this before).
'r' placed inside 'stop' is 'STROP'.
(Other definitions for strop that I've seen before include "Leather strap used to sharpen razors" , "Paddy" , "Prime cutthroat" , "Razor-sharpener" , "Strip of leather on which razor is sharpened" .)