Monkey club greeting politician (5)
I believe the answer is:
chimp
'monkey' is the definition.
(thesaurus)
'club greeting politician' is the wordplay.
'club' becomes 'c' (this could be a standard abbreviation of which I'm unaware).
'greeting' becomes 'hi' (hi is a kind of greeting).
'politician' becomes 'MP' (Member of Parliament).
'c'+'hi'+'mp'='CHIMP'
Can you help me to learn more?
(Other definitions for chimp that I've seen before include "Cheeky primate" , "Anthropoid ape" , "Arboreal ape from equatorial Africa (abbr)" , "A great ape (abbr.)" , "Creature" .)