Expressed deep unhappiness with snakes affected by gale (9)
I believe the answer is:
windswept
'affected by gale' is the definition.
(I've seen this before)
'expressed deep unhappiness with snakes' is the wordplay.
'expressed deep unhappiness' becomes 'wept' (I can't justify this - if you can you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'snakes' becomes 'winds'.
'wept' put after 'winds' is 'WINDSWEPT'.
Can you help me to learn more?
(Other definitions for windswept that I've seen before include "beaten by the weather" , "Affected by moving air" , "having dishevelled look" , "blown away" , "Bedraggled" .)