Winds disturbing isle after festival (10)

I believe the answer is:

easterlies

'winds' is the definition.
(easterly is a kind of wind)

'disturbing isle after festival' is the wordplay.
'disturbing' indicates an anagram (I've seen this in other clues).
'after' says to put letters next to each other.
'festival' becomes 'easter' (I've seen this before).
'isle' is an anagram of 'lies'.
'lies' put after 'easter' is 'EASTERLIES'.

I've seen this clue in The Telegraph.

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