Wind up legal student, getting lost (4)

I believe the answer is:

gale

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'wind' is the definition.
(I know that gale is a type of wind)

'up legal student getting lost' is the wordplay.
'up legal student' becomes 'gae' (I can't explain this - if you can you should believe this answer much more).
'getting' is an insertion indicator.
'lost' becomes 'l' (abbreviation in sporting league tables).
'gae' enclosing 'l' is 'GALE'.

Can you help me to learn more?

(Other definitions for gale that I've seen before include "Squall" , "A wild storm" , "Strong wind" , "Fierce wind" , "Bille from a bladder" .)

I've seen this clue in The Mirror.

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