Comfortable answer should be loud and eloquent (8)
I believe the answer is:
affluent
'comfortable' is the definition.
(I've seen this before)
'answer should be loud and eloquent' is the wordplay.
'answer' becomes 'a' (abbreviation eg in Q and A).
'should be loud' becomes 'f' (I can't explain this - if you can you should believe this answer much more).
'and' means one lot of letters go next to another.
'eloquent' becomes 'fluent' (synonyms).
'a'+'f'+'fluent'='AFFLUENT'
Can you help me to learn more?
(Other definitions for affluent that I've seen before include "Flute fan may be wealthy" , "Well off, having plenty of money" , "Very well off, quite rich" , "Wealthy - abundant" , "Wealthy, rich" .)