Crossword Genius

It may be simple to engage one's attention (8)

Ross

I believe the answer is:

interest

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

'attention' is the definition.
(thesaurus)

'it may be simple to engage one's' is the wordplay.
I cannot quite understand how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
'be' could be 'rest' (resting is a kind of being) and 'rest' is present in the answer.
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
The remaining letters 'ne' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for interest that I've seen before include "Pursuit" , "Money made by or paid for money" , "Proceeds" , "Money found in street" , "Cost of borrowing" .)

I've seen this clue in The Globe and Mail.
Want a hint initially instead of a full solution? Install my app