Electrician to leave car aboard ship (6)
I believe the answer is:
sparks
'electrician' is the definition.
(I've seen this before)
'leave car aboard ship' is the wordplay.
'leave car' becomes 'park' (I've seen this before).
'aboard' is an insertion indicator.
'ship' becomes 'ss'.
'park' going into 'ss' is 'SPARKS'.
'to' acts as a link.
(Other definitions for sparks that I've seen before include "Bright discharges" , "Flashes from electrical discharge" , "Momentary flashes of light" , "Fiery particles emitted by fire" , "Electric discharges" .)