Crossword Genius

Outdo mate, upshot uncertain (3,2,5)

Ross

I believe the answer is:

put to shame

'outdo' is the definition.

'mate upshot uncertain' is the wordplay.
'uncertain' indicates anagramming the letters.
'mate'+'upshot'='mateupshot'
'mateupshot' with letters rearranged gives 'PUT TO SHAME'.

(Other definitions for put to shame that I've seen before include "Disgrace" , "Humiliate" .)

I've seen this clue in The Times.
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