Little Mama gets the smallest portion (7)
I believe the answer is:
minimum
'portion' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'little mama gets the smallest' is the wordplay.
'little' means to remove the last letter (the word is not quite complete).
'mama' becomes 'mum' (synonyms).
'gets' indicates putting letters inside.
'the smallest' becomes 'minim' (I've seen this in another clue).
'mum' with its last letter taken off is 'mu'.
'mu' placed into 'minim' is 'MINIMUM'.
Can you help me to learn more?
(Other definitions for minimum that I've seen before include "Smallest possible quantity" , "Least recorded value" , "Lowest point" , "Lowest value" , "Least possible quantity" .)