Perhaps a joker, this character? (4)
I believe the answer is:
card
This clue could be a double definition.
'perhaps a joker this' is the first definition.
The definition suggests a singular noun which matches the answer.
'character?' is the second definition.
(both can mean a humorous person)
Can you help me to learn more?
(Other definitions for card that I've seen before include "Eg, a heart or club" , "Amusing person" , "witty type" , "Programme of events" , "Comb (wool)" .)