Crossword Genius

Boxing a long time, clobber despicable people (7)

Ross

I believe the answer is:

toerags

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'despicable people' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'boxing a long time clobber' is the wordplay.
'boxing' is an insertion indicator ('box' can mean contain, as in to put in a box).
'a long time' becomes 'era' (a long period of time).
'clobber' becomes 'togs' (I can't justify this - if you can you should give a lot more credence to this answer).
'era' going into 'togs' is 'TOERAGS'.

Can you help me to learn more?

(Other definitions for toerags that I've seen before include "Wretched folk" , "Bums" , "Unpleasant people" .)

I've seen this clue in The Guardian.
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