Huge mediums embracing a flapper going into the light (7)
I believe the answer is:
mammoth
'huge' is the definition.
(synonyms)
'mediums embracing a flapper going into the light' is the wordplay.
I cannot really understand how this works, but
'mediums' could be 'mm' (two M's - M means Medium as in clothing sizes) and 'mm' is present in the answer.
'a' is found in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for mammoth that I've seen before include "Prehistoric beast like hairy elephant" , "Extinct type of elephant" , "Large 15 animal" , "Large extinct beast" , "Huge" .)