Crossword Genius

....upset one's performance after beginning to doubt (10)

Ross

I believe the answer is:

disconcert

'upset' is the definition.
(disconcerting is a kind of upseting)

'one's performance after beginning to doubt' is the wordplay.
'one's' becomes 'is' (roman numeral).
'performance' becomes 'concert' (concert is a kind of performance**).
'after' says to put letters next to each other.
'beginning to' says to take the initial letters.
The initial letter of 'doubt' is 'd'.
'is'+'concert'='isconcert'
'isconcert' after 'd' is 'DISCONCERT'.

(Other definitions for disconcert that I've seen before include "Dismay" , "Throw" , "Disturb, unsettle" , "Confuse; worry" , "Bother" .)

I've seen this clue in The Telegraph.
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.