Crossword Genius

The hat check girl's little hole in the wall (5)

Ross

I believe the answer is:

hatch

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'girl's little hole in the wall' is the definition.
I can't tell whether this definition defines the answer.

'the hat check' is the wordplay.
'check' becomes 'ch' (abbreviation).
'hat'+'ch'='HATCH'

Can you help me to learn more?

(Other definitions for hatch that I've seen before include "Of young bird or fish, emerge from egg" , "Come up with" , "Movable cover on ship's deck - batten it down" , "Opening in floor or wall" , "Draw fine lines" .)

I've seen this clue in the Evening Standard.
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