Looking embarrassed in sore distress (3)
I believe the answer is:
red
'looking embarrassed' is the definition.
(I've seen this before)
'in sore distress' is the wordplay.
'in' says the answer is hidden in the clue.
'RED' is hidden in the letters of 'sore distress'.
(Other definitions for red that I've seen before include "Colour of communism" , "Carmine" , "Colour of garnets" , "Primary colour" , "Flushed" .)