Not too well away, go red? (3-6)

I believe the answer is:

off-colour

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'not too well' is the definition.
The definition suggests an adjective which matches the answer.

'away go red?' is the wordplay.
'away' becomes 'off' (synonyms).
'go red?' becomes 'colour' (I've seen this before).
'off'+'colour'='OFF-COLOUR'

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(Other definitions for off-colour that I've seen before include "Unwell, lacking pigment?" , "Not well - looking pale" , "Ailing - blue" , "Slightly unwell" , "Unwell or mildly indecent" .)

I've seen this clue in The Telegraph.

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