We edit it out as something unwanted (4)

I believe the answer is:

weed

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'something unwanted' is the definition.
I can't judge whether this definition defines the answer.

'we edit it out' is the wordplay.
'out' is a deletion indicator.
'edit' with 'it' taken out is 'ed'.
'we'+'ed'='WEED'

'as' acts as a link.

Can you help me to learn more?

(Other definitions for weed that I've seen before include "Got rid of water" , "Uncultivated plant" , "Wild unwanted plant - tobacco?" , "Marijuana (slang)" , "Plant growing where it is not wanted" .)

I've seen this clue in the Evening Standard.

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