Crossword Genius

At the cricket ground, he isn't troubled by ducks (6)

Ross

I believe the answer is:

scorer

I'm a little stuck... Click here to teach me more about this clue!

'he isn't troubled by ducks' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'at the cricket ground' is the wordplay.
I cannot quite see how this works, but
'ground' could be 'score' (score is a kind of ground) and 'score' is found within the answer.
A single letter 'r' remains which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for scorer that I've seen before include "Cricket official" , "Film music arranger" , "One keeping count of points earned" , "Sir, not one without heart as a" , "He scratches" .)

I've seen this clue in the Evening Standard.
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