Advise dim entrepreneur holding deposit (8)

I believe the answer is:

sediment

'deposit' is the definition.
('sediment' can be a synonym of 'deposit')

'advise dim entrepreneur holding' is the wordplay.
'holding' says the answer is hidden in the clue.
'SEDIMENT' is hidden in the letters of 'advise dim entrepreneur'.

(Other definitions for sediment that I've seen before include "Matter sinking to the bottom of a liquid" , "End times (anag)" , "Send item (anag)" , "Material settling out in a liquid" , "Matter settling out in liquid" .)

I've seen this clue in The Telegraph.

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