Equitable market (4)
I believe the answer is:
fair
I believe this clue is a double definition.
'equitable' is the first definition.
('fair' can be a synonym of 'equitable')
'market' is the second definition.
(I've seen this before)
(Other definitions for fair that I've seen before include "Pretty good" , "Women are known as the ... sex" , "... enough! - that's reasonable" , "Attractive type of weather?" , "Blonde; beautiful" .)