Bleat about elderly relative ('skinny thing') (6)
I believe the answer is:
banana
'skinny thing' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'bleat about elderly relative' is the wordplay.
'bleat' becomes 'baa' (synonyms).
'about' is an insertion indicator.
'elderly relative' becomes 'nan' (I've seen this before).
'baa' enclosing 'nan' is 'BANANA'.
Can you help me to learn more?
(Other definitions for banana that I've seen before include "plant" , "Curved fruit (in a split dessert?)" , "Plantain-like fruit" , "Sub-tropical fruit" , "Small politically unstable country dominated by foreign companies" .)