Soft pink in everyday language (5)
I believe the answer is:
prose
'everyday language' is the definition.
(I've seen this in another clue)
'soft pink' is the wordplay.
'soft' becomes 'p' (musical abbreviation for piano, 'soft').
'pink' becomes 'rose' (colour).
'p'+'rose'='PROSE'
'in' is the link.
(Other definitions for prose that I've seen before include "Ordinary spoken or written language" , "Not poetry" , "Text" , "Literary genre" , "Gossipy talker" .)