Pink, lean flanked newt (7)
I believe the answer is:
leftist
'pink' is the definition.
Both the definition and answer are adjectives. Maybe you can see an association between them that I can't see?
'lean flanked newt' is the wordplay.
I cannot quite see how this works, but
'newt' could be 'eft' (eft is a kind of newt) and 'eft' is located in the answer.
'lean' could be 'list' (both can mean to tilt) and 'list' is found within the remaining letters.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for leftist that I've seen before include "Communist" , "Area" , "Socialist supporter" , "Labourite" , "Labour Party member" .)