The charm of a cash incentive (6)

I believe the answer is:

allure

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'the charm' is the definition.
(I've seen this in another clue)

'a cash incentive' is the wordplay.
'cash' becomes 'L' (The pound sterling symbol is an elaborate L).
'incentive' becomes 'lure' (I can't justify this - if you can you should give a lot more credence to this answer).
'a'+'l'+'lure'='ALLURE'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for allure that I've seen before include "Powerful attraction" , "Laurel (anag)" , "Entice or attract - sounds like a decoy" , "Enticement, attraction" , "Glamorous appeal" .)

I've seen this clue in the Evening Standard.

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