Airman concerned with ignition? (5)

I believe the answer is:

pilot

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'airman' is the definition.
(I know that pilot is a type of airman)

I don't understand the remainder of the clue.

(Other definitions for pilot that I've seen before include "Plane driver" , "He steers ship or plane" , "Test or trial (project or programme)" , "Navigator" , "air traffic controller?" .)

I've seen this clue in the Evening Standard.

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