Family-member with magnificent degree (7)
I believe the answer is:
grandma
'degree' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'family-member with magnificent' is the wordplay.
'family member' becomes 'ma' (ma can informally mean someone's mother).
'with' is a charade indicator (letters next to each other).
'magnificent' becomes 'grand' (I've seen this before).
'ma' put after 'grand' is 'GRANDMA'.
Can you help me to learn more?
(Other definitions for grandma that I've seen before include "Elderly relative" , "Older relative" , "Parent's mother" , "Drag man out to meet the old lady" , "family member" .)