Silently, let’s cheer! (6)

I believe the answer is:

please

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'cheer' is the definition.
(thesaurus)

'silently let's' is the wordplay.
'silently' becomes 'p' (I can't explain this - if you can you should give a lot more credence to this answer).
'let' becomes 'lease' (as in to lease or let a building).
'p'+'lease'='PLEASE'

Can you help me to learn more?

(Other definitions for please that I've seen before include "Give satisfaction to" , "Polite request - make someone happy" , "If you'd be so kind?" , "Asleep (anag)" , "Polite word of request" .)

I've seen this clue in The Hindu.

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