A tenor isn't disposed to use such a loud bass voice (10)

I believe the answer is:

stentorian

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'use such a loud bass voice' is the definition.
I can't judge whether this defines the answer.

'a tenor isn't disposed' is the wordplay.
'disposed' is an anagram indicator.
'a'+'tenor'+'isnt'='atenorisnt'
'atenorisnt' anagrammed gives 'STENTORIAN'.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for stentorian that I've seen before include "booming" , "(Of a person's voice) loud and powerful" , "Strident" .)

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

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