Using it, may a cowboy miss nothing? (5)

I believe the answer is:

lasso

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'using it may a cowboy' is the definition.
I can't tell whether this definition defines the answer.

'miss nothing?' is the wordplay.
'miss' becomes 'lass' (lass is a kind of miss).
'nothing?' becomes 'o' (looks like zero - 0).
'lass'+'o'='LASSO'

Can you help me to learn more?

(Other definitions for lasso that I've seen before include "Cattle-catching rope" , "A cowboy's looped lariat" , "Cowcatcher" , "A cowboy's rope with a running noose" , "Cow catcher" .)

I've seen this clue in the Evening Standard.

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