Teases the silly fellows (5)

I believe the answer is:

twits

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'teases' is the definition.
('twit' can be a synonym of 'tease')

'the silly fellows' is the wordplay.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'silly fellows' becomes 'wits' (I can't explain this - if you can you should believe this answer much more).
't'+'wits'='TWITS'

Can you help me to learn more?

(Another definition for twits that I've seen is " Taunts; idiots".)

I've seen this clue in the Evening Standard.

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