Crossword Genius

Not an exclusive thing to do, you'll admit (3,2)

Ross

I believe the answer is:

let in

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

'admit' is the definition.
(synonyms)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for let in that I've seen before include "Admit" , "Grant entry" , "swindle . . ." , "Allowed to enter" , "Allow to enter" .)

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