Crossword Genius

Really popular outcome (2,6)

Ross

I believe the answer is:

in effect

'really' is the definition.
(I've seen this before)

'popular outcome' is the wordplay.
'popular' becomes 'in' ('in' can mean trendy).
'outcome' becomes 'effect' (synonyms).
'in'+'effect'='IN EFFECT'

(Other definitions for in effect that I've seen before include "In reality" , "to all intents and purposes" , "Really; operative" , "In force or in practice" , "Operating; to all intents" .)

I've seen this clue in The Telegraph.
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