Crossword Genius

Bookmakers must have stories about worker (11)

Ross

I believe the answer is:

accountants

'bookmakers' is the definition.
(accountants do bookkeeping)

'stories about worker' is the wordplay.
'stories' becomes 'accounts' ('account' can be a synonym of 'story').
'about' means one lot of letters goes inside another.
'worker' becomes 'ant' (worker is a type of ant).
'accounts' enclosing 'ant' is 'ACCOUNTANTS'.

'must have' is the link.

I've seen this clue in The Telegraph.
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