Perhaps a joker, this character? (4)

I believe the answer is:

card

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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)" .)

I've seen this clue in the Evening Standard.

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