Tomahawk's helping US city (5)

I believe the answer is:

omaha

'us city' is the definition.
(I've seen this before)

'tomahawk's helping' is the wordplay.
'helping' indicates a hidden word (a helping or portion of the letters).
'OMAHA' is hidden within 'tomahawks'.

(Other definitions for omaha that I've seen before include "O, a ham found in US city on Missouri river" , "Cotton fabric used for curtains and upholstery" , "Nebraska's largest city" , "Where American may work" , "American Indian" .)

I've seen this clue in The Independent.

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