Crossword Genius

Acquisitive individual tucking into my food, a former crooner (5-8)

Ross

I believe the answer is:

money-grubbing

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'acquisitive individual' is the definition.
The definition suggests an adjective which matches the answer.

'tucking into my food a former crooner' is the wordplay.
'tucking into' indicates putting letters inside.
'food' becomes 'grub' (grub can informally mean food).
'a' becomes 'one'.
'former crooner' becomes 'bing' (Bing Crosby. I am not sure about the 'former' bit.).
'my'+'grub'='mygrub'
'mygrub' placed around 'one' is 'moneygrub'.
'moneygrub'+'bing'='MONEY-GRUBBING'

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