Crossword Genius

On a charge this might well be sinister (4)

Ross

I believe the answer is:

bend

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'on a charge this might well be sinister' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

'on a charge this might well be' is the wordplay.
'on' means one lot of letters go next to another.
'a charge this might well' becomes 'nd' (I can't justify this - if you can you should give a lot more credence to this answer).
'nd' after 'be' is 'BEND'.

Can you help me to learn more?

(Other definitions for bend that I've seen before include "Country; bird" , "elbow" , "Crouch" , "Crook" , "Corner" .)

I've seen this clue in The Irish Independent.
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