Crossword Genius

Searching for diamonds, found 56 in England (7)

Ross

I believe the answer is:

delving

'searching' is the definition.
(thesaurus)

'diamonds found 56 in england' is the wordplay.
'diamonds' becomes 'd' (abbreviation in bridge say).
'found' is a charade indicator (letters next to each other).
'56' becomes 'lvi' (Roman numerals).
'in' is an insertion indicator.
'england' becomes 'eng'.
'lvi' inserted within 'eng' is 'elving'.
'd'+'elving'='DELVING'

'for' is the link.

(Another definition for delving that I've seen is " digging".)

I've seen this clue in The Guardian.
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