Head keeping mum gets stick (5)

I believe the answer is:

caman

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

'stick' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Another definition for caman that I've seen is " Stick".)

I've seen this clue in The Sunday Times and The Times.

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