Crossword Genius

That's frightening about fan's collapse (4,4)

Ross

I believe the answer is:

keel over

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

'that's frightening about fan's' is the wordplay.
'that's frightening' becomes 'eek' (expression of fear).
'about' says the letters should be written in reverse.
'fan' becomes 'lover' (synonyms).
'eek' back-to-front is 'kee'.
'kee'+'lover'='KEEL OVER'

(Other definitions for keel over that I've seen before include "Suddenly collapse" , "Pass out" , "Fall, as in a faint" , "Capsize" .)

I've seen this clue in The Guardian.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.