Crossword Genius

Refueling ship (5)

Ross

I believe the answer is:

'refueling ship' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for oiler that I've seen before include "it may be 4 [SHIPSHAPE]" , "Fuel tanker" , "Grease monkey" , "Petroleum tanker" , "Device that lubricates" .)

I've seen this clue in The Washington Post, the L.A. Times Daily, The Mirror and the LA Times.
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