Hide in desk, ingots (4)

I believe the answer is:

skin

'hide' is the definition.
('skin' can be a synonym of 'hide')

'in desk ingots' is the wordplay.
'in' says the answer is hidden in the clue.
'SKIN' is hidden within 'desk ingots'.

(Other definitions for skin that I've seen before include "Outer layer of, eg, apple" , "Flense" , "Surface layer" , "What keeps you in" , "Thin outer layer" .)

I've seen this clue in The Telegraph.

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