Crossword Genius

Flare up (5)

Ross

I believe the answer is:

erupt

'flare up' is the definition.
(synonyms)

This is the entire clue.

(Other definitions for erupt that I've seen before include "be active" , "Burst forth violently" , "Burst forth, like 25" , "Break out like Etna" , "go up" .)

I've seen this clue in The Independent and The Telegraph.
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