Possibly a good tryer? That's somewhat disparaging (10)

I believe the answer is:

derogatory

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'somewhat disparaging' is the definition.
'derogatory' can be an answer for 'disparaging' (synonyms). I'm unsure of the 'somewhat' bit.

'possibly a good tryer?' is the wordplay.
'possibly' indicates an anagram.
'a'+'good'+'tryer'='agoodtryer'
'agoodtryer' is an anagram of 'DEROGATORY'.

'that's' acts as a link.

Can you help me to learn more?

(Other definitions for derogatory that I've seen before include "Insulting" , "Showing a disrespectful attitude" , "Disparaging" , "deliberately offensive" .)

I've seen this clue in The Globe and Mail and The Irish Independent.

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