Free pardon (5)

I believe the answer is:

spare

This clue is a double definition.

'free' is the first definition.
(I know that free can be written as spare)

'pardon' is the second definition.
(I've seen this in another clue)

(Other definitions for spare that I've seen before include "A feature of trousers" , "Thin; left over" , "Pardon; unneeded" , "Additional - for use when needed" , "Extra; lean" .)

I've seen this clue in The Telegraph and The Sun.

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