English left with yen for fairness (6)
I believe the answer is:
equity
'fairness' is the definition.
('equity' can be a synonym of 'fairness')
'english left with yen' is the wordplay.
'english' becomes 'e' (abbreviation).
'left' becomes 'quit' (I've seen this before**).
'with' means one lot of letters go next to another.
'yen' becomes 'y'.
'e'+'quit'+'y'='EQUITY'
'for' acts as a link.
(Other definitions for equity that I've seen before include "Moral justice for the actor's union" , "Fairness, impartial treatment" , "Group of performers" , "Fairness; shareholding" , "Fairness for actors' trade union" .)