Seabird sounds like fuel (6)
I believe the answer is:
petrel
'seabird sounds like fuel' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for petrel that I've seen before include "Seabird (that may be stormy)" , "Small seabird" , "Mother Carey's chicken" , "Bird of storms at sea" , "Seabird sounds like fuel" .)