Big cat seen by party organiser on heroin? (9)
I believe the answer is:
horsewhip
'big cat' is the definition.
'horsewhip' can be an answer for 'cat' (thesaurus). I'm not certain of the 'big' bit.
'party organiser on heroin?' is the wordplay.
'party organiser' becomes 'whip' ('whips' keep discipline in parliamentary parties).
'on' is a charade indicator (letters next to each other).
'heroin?' becomes 'horse' (slang term for heroin).
'whip' put after 'horse' is 'HORSEWHIP'.
'seen by' is the link.
Can you help me to learn more?
(Other definitions for horsewhip that I've seen before include "flog" , "punish painfully" , "Beat, lash" , "Coachman''s lash" , "Coachman's accessory" .)