Barman maybe offering sample outside front of pub (7)
I believe the answer is:
tapster
'barman' is the definition.
(I know that tapster is a type of barman)
'sample outside front of pub' is the wordplay.
'sample' becomes 'taster' (I've seen this before).
'outside' is an insertion indicator (some letters go outside others).
'front of' says to take the initial letters (the letter at the front of the word).
The initial letter of 'pub' is 'p'.
'taster' placed around 'p' is 'TAPSTER'.
'maybe offering' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for tapster that I've seen before include "old barman" , "Old barperson" , "Bartender once" , "Rat pest (anag.)" , "Bar employee" .)