Light rice pudding inspires composer (10)
I believe the answer is:
chandelier
'light' is the definition.
(hanging light with candles)
'rice pudding inspires composer' is the wordplay.
'pudding' indicates anagramming the letters (a mixture or pudding of the letters).
'inspires' is an insertion indicator (inspire means to breathe in).
'composer' becomes 'handel' (George Frideric Handel).
'rice' anagrammed gives 'cier'.
'cier' enclosing 'handel' is 'CHANDELIER'.
(Other definitions for chandelier that I've seen before include "Ornamental lighting fixture" , "Ornament" , "lights up?" , "Elaborate hanging light" , "Candelabrum" .)