Vessels used by ignition specialists? (8)

I believe the answer is:

lighters

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'vessels' is the definition.
(lighter is a kind of vessel)

I can't explain the rest of the clue.

(Other definitions for lighters that I've seen before include "They'll get pipes going" , "Cigarette igniters or kind of boats" .)

I've seen this clue in the Evening Standard.

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