Flyer, one broaching business scheme (2-5)

I believe the answer is:

co-pilot

'flyer' is the definition.
(co-pilot is a kind of flyer)

'one broaching business scheme' is the wordplay.
'one' becomes 'i' (Roman numeral).
'broaching' is an insertion indicator (broach can mean to pierce or puncture).
'business' becomes 'co' (short for company).
'scheme' becomes 'plot' (plot is a kind of scheme).
'co'+'plot'='coplot'
'i' placed within 'coplot' is 'CO-PILOT'.

(Another definition for co-pilot that I've seen is " Part of a flight deck team".)

I've seen this clue in The Times.

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