Pop out after beer in Syrian city (6)
I believe the answer is:
aleppo
'syrian city' is the definition.
(I've seen this before)
'pop out after beer' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'after' means one lot of letters go next to another.
'beer' becomes 'ale' (I've seen this before).
'pop' is an anagram of 'ppo'.
'ppo' after 'ale' is 'ALEPPO'.
'in' acts as a link.
(Other definitions for aleppo that I've seen before include "Middle East city" , "City in Syria - lop ape (anag)" , "Foreign city" , "Ancient city, in Syria" , "Tomorrow" .)