Crossword Genius

Symbol that’s popular holding firm (4)

Ross

I believe the answer is:

icon

'symbol' is the definition.
(thesaurus)

'popular holding firm' is the wordplay.
'popular' becomes 'in'.
'holding' is an insertion indicator.
'firm' becomes 'co' (a firm is a company).
'in' enclosing 'co' is 'ICON'.

'that's' is the link.

(Other definitions for icon that I've seen before include "Holy image or symbol on computer screen" , "A religious painting or representative figure" , "Representation on wooden panel of saint" , "Something revered" , "Adult butterfly" .)

I've seen this clue in The Times.
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