Mental gymnastics are too much for him (4)

I believe the answer is:

algy

I'm a little stuck... Click here to teach me more about this clue!

'him' is the definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?

'mental gymnastics are too much' is the wordplay.
'are too much' indicates the answer is hidden within the clue (the clue hides the answer plus unneeded letters).
'ALGY' is hidden within 'mental gymnastics'.

'for' is the link.

Can you help me to learn more?

(Another definition for algy that I've seen is " man".)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.