Liberal seen in club with six-footer, unashamed (7)
I believe the answer is:
blatant
'unashamed' is the definition.
(thesaurus)
'liberal seen in club with six-footer' is the wordplay.
'liberal' becomes 'l' (abbreviation).
'seen in' means one lot of letters goes inside another.
'club' becomes 'bat' (bat is a kind of club).
'with' means one lot of letters go next to another.
'six footer' becomes 'ant' (an ant has six feet).
'l' going into 'bat' is 'blat'.
'blat'+'ant'='BLATANT'
(Other definitions for blatant that I've seen before include "Without any attempt at concealment" , "Very obvious and without shame" , "Very noticeable and obtrusive" , "Unashamed, flagrant" , "Brazen, flagrant" .)