Child in Scotland showing AI lowered mental ability (5)
I believe the answer is:
brain
'ability' is the definition.
(brain is a kind of ability)
'child in scotland showing ai lowered mental' is the wordplay.
I cannot quite understand how this works, but
'in' is present in the answer.
The remaining letters 'bra' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for brain that I've seen before include "Thinking organ" , "It's in the skull" , "Intelligent person" , "It controls the central nervous system" , "Whack on the head" .)