Again, many are looking embarrassed (3)
I believe the answer is:
red
'looking embarrassed' is the definition.
(I've seen this before)
'again many' is the wordplay.
'again' becomes 're'.
'many' becomes 'd' ().
're'+'d'='RED'
'are' acts as a link.
(Other definitions for red that I've seen before include "Colour of a cardinal's hat" , "Primary colour" , "Blood-coloured" , "The colour of the former Russian army" , "Very angry, seeing this" .)