Fair enough! (8)

There are a few possibilities for this:

Which length description are you looking for?:

5,5

adequate

This clue is a double definition.

'fair' is the first definition.
(synonyms)

'enough' is the second definition.
(synonyms)

(Other definitions for adequate that I've seen before include "Sufficient, good enough" , "'Satisfactory, acceptable (8)'" , "'Good enough, all right (8)'" , "Enough to meet a purpose" , "up to the job?" .)

I've seen this clue in The Independent.

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