Male entering hairdressing establishment in pink (6)
I believe the answer is:
salmon
'pink' is the definition.
(salmon pink is a kind of pink)
'male entering hairdressing establishment' is the wordplay.
'male' becomes 'm' (common abbreviation).
'entering' is an insertion indicator.
'hairdressing establishment' becomes 'salon' (I've seen this before).
'm' placed into 'salon' is 'SALMON'.
'in' acts as a link.
(Other definitions for salmon that I've seen before include "Sockeye, for example" , "Parr or grilse" , "Edible fish" , "(Now mainly farmed) fish" , "Fish (often smoked)" .)