Pale, due to having a fling? (4)
I believe the answer is:
ashy
'pale' is the definition.
(I've seen this in another clue)
'a fling?' is the wordplay.
'fling?' becomes 'shy' (I've seen this before).
'a'+'shy'='ASHY'
'due to having' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for ashy that I've seen before include "Leaden" , "like Cinders" , "evidence of recent fire" , "White" , "Dusty" .)