Cowardly cold flier, croaking (6)
I believe the answer is:
craven
'cowardly' is the definition.
(similar in meaning)
'cold flier croaking' is the wordplay.
I cannot really understand how this works, but
'cold' could be 'c' (eg on taps) and 'c' is located in the answer.
'flier' could be 'raven' (raven is a kind of birdanimal) and 'raven' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for craven that I've seen before include "Mean-spirited" , "Chicken-hearted" , "Contemptibly cowardly" , "Lacking courage, cowardly" , "Cowardly and fearful" .)