Crossword Genius

How to put rents up and still be an amusing fellow (7)

Ross

I believe the answer is:

punster

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'still be an amusing fellow' is the definition.
I can't judge whether this defines the answer.

'how to put rents up' is the wordplay.
'how' becomes 'pu' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to put' means one lot of letters go next to another.
'up' indicates anagramming the letters (letters get chucked up).
'rents' with letters rearranged gives 'nster'.
'pu'+'nster'='PUNSTER'

'and' acts as a link.

Can you help me to learn more?

(Other definitions for punster that I've seen before include "One makes jokes" , "Verbal joker" , "One who plays on words" , "One playing on words" , "user of wordplay" .)

I've seen this clue in the Evening Standard.
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