Crossword Genius

Grey, but still able to have a fling? (4)

Ross

I believe the answer is:

ashy

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

'grey' is the definition.
(similar in meaning)

'a fling?' is the wordplay.
'fling?' becomes 'shy' (shy can mean to throw).
'a'+'shy'='ASHY'

'but still able to have' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for ashy that I've seen before include "pale greyish colour" , "Deathly pale" , "Like burnt wood or coal" , "Like, eg, volcanic dust" , "What could tray be" .)

I've seen this clue in the Evening Standard.
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