Drinking wine, very rebellious character gets a little noticeably loud (10)
I believe the answer is:
stentorian
'loud' is the definition.
(similar in meaning)
'drinking wine very rebellious character gets a little noticeably' is the wordplay.
I cannot quite see how this works, but
'wine' could be 'tent' (I've seen this before) and 'tent' is present in the answer.
'very' could be 'so' (both can mean 'extremely') and 'so' is present in the remaining letters.
'character' could be 'r' and 'r' is present in the answer.
'a' could be 'an' and 'an' is found within the answer.
A single letter 'i' 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 stentorian that I've seen before include "booming" , "Strident" , "(Of a person's voice) loud and powerful" .)