Champagne maker limiting temperature and composition (5)

I believe the answer is:
motet
'composition' is the definition.
(I've seen this before)
'champagne maker limiting temperature' is the wordplay.
'champagne maker' becomes 'moet' (I can't explain this - if you can you should believe this answer much more).
'limiting' means one lot of letters goes inside another.
'temperature' becomes 't' (abbreviation).
'moet' placed around 't' is 'MOTET'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for motet that I've seen before include "Short sacred vocal work" , "Unaccompanied choral composition with sacred lyrics" , "Creating sacred piece" , "Religious choral composition" , "Piece for choir" .)
