Crossword Genius

Critical moment taking in probe that's malfunctioning (8,5)

Ross

I believe the answer is:

breaking point

'critical moment' is the definition.
(both can mean an important or crucial moment)

'taking in probe that's malfunctioning' is the wordplay.
'that's malfunctioning' indicates an anagram.
'taking'+'in'+'probe'='takinginprobe'
'takinginprobe' with letters rearranged gives 'BREAKING-POINT'.

(Other definitions for breaking point that I've seen before include "Moment at which something gives way" , "The end of one's tether?" , "Critical moment for collapse" .)

I've seen this clue in The Times.
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