Crossword Genius

Writer put in cage (3)

Ross

I believe the answer is:

pen

This clue is a double definition.

'writer' is the first definition.
(something which writes)

'put in cage' is the second definition.
(pen can mean to put in a cage)

(Other definitions for pen that I've seen before include "Put down" , "Pound" , "Writing instrument" , "See 20" , "'The ... is mightier than the sword'" .)

I've seen this clue in The Times.
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