Compiler in trousers: are you about to become intellectual? (4-4,6)

I believe the answer is:

jean-paul sartre

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'become intellectual?' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'compiler in trousers are you about' is the wordplay.
'compiler' becomes 'Paul' (Paul is a crossword compiler for the Guardian).
'in' indicates putting letters inside.
'trousers' becomes 'jean' (jean is a kind of trousers).
'are you about' becomes 'sartre' (I can't justify this - if you can you should give a lot more credence to this answer).
'jean'+'sartre'='jeansartre'
'paul' placed within 'jeansartre' is 'JEAN-PAUL SARTRE'.

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in The Guardian.

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