Liverpudlian in pickle about clubs (6)
I believe the answer is:
scouse
'liverpudlian' is the definition.
(both mean coming from Liverpool)
'pickle about clubs' is the wordplay.
'pickle' becomes 'souse' (I've seen this in another clue).
'about' means one lot of letters goes inside another.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'souse' going around 'c' is 'SCOUSE'.
'in' acts as a link.
(Other definitions for scouse that I've seen before include "English dialect spoken in Liverpool" , "(Someone) from Liverpool" , "Slang for native of Liverpool" , "What they speak in Liverpool?" , "Liverpudlian accent" .)