Give loud cry of pain like a coward (6)
I believe the answer is:
yellow
'like a coward' is the definition.
(I've seen this before)
'give loud cry of pain' is the wordplay.
'give loud' becomes 'yell' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'cry of pain' becomes 'ow' (exclamation of pain).
'yell'+'ow'='YELLOW'
Can you help me to learn more?
(Other definitions for yellow that I've seen before include "Cowardly; coloured" , "Coldplay song; colour" , "Sunny colour" , "Chicken" , "Offensively sensational" .)