Priest sozzled in bar (6)
I believe the answer is:
stripe
'bar' is the definition.
(I know that bar can be written as stripe)
'priest sozzled' is the wordplay.
'sozzled' is an anagram indicator.
'priest' with letters rearranged gives 'STRIPE'.
'in' acts as a link.
(Other definitions for stripe that I've seen before include "Piece of braid indicating military rank" , "Streak" , "Long narrow mark found in tripes" , "Military rank indicator" , "Band of contrasting colour" .)