Sumptuously fed by the lady in red (7)
I believe the answer is:
regaled
'sumptuously fed' is the definition.
The answer and definition can be both related to consumption as well as being past participle verbs.
Perhaps you can see an association between them that I don't see?
'lady in red' is the wordplay.
'lady' becomes 'gale' ().
'in' indicates putting letters inside.
'gale' placed into 'red' is 'REGALED'.
'by the' acts as a link.
Can you help me to learn more?
(Other definitions for regaled that I've seen before include "Plied with drink" , "wined and dined" , "Feted" .)