Complaint from Liberal in club (5)
I believe the answer is:
bleat
'complaint' is the definition.
(I've seen this before)
'liberal in club' is the wordplay.
'liberal' becomes 'l' (abbreviation).
'in' means one lot of letters goes inside another.
'club' becomes 'beat' (I've seen this before).
'l' inserted into 'beat' is 'BLEAT'.
'from' acts as a link.
(Other definitions for bleat that I've seen before include "Sheep's weak cry" , "Plaintive cry" , "Cry of a sheep or calf" , "Whine" , "kid makes such a noise" .)