Plants disturbed in a gale (5)

I believe the answer is:

algae

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'plants disturbed in' is the definition.
'algae' can be an answer for 'plants' (I've seen this before). I am not sure about the 'disturbed in' bit.

'a gale' is the wordplay.
'a gale' can be anagrammed to 'ALGAE'.
But, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for algae that I've seen before include "Aquatic growths" , "Type of seaweed" , "Simple plants, such as plankton" , "Seaweeds etc" , "Water plants seen in a gale" .)

I've seen this clue in the Evening Standard.

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