Look at joker, jack, queen or king (4,4)

I believe the answer is:

face card

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for face card that I've seen before include "Maybe knave" , "Queen or Jack, say?" , "Jack for instance" , "Knave, perhaps" , "not a joker" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app