Flat-bottomed barge (4)
'flat-bottomed barge' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for lighter that I've seen before include "Smoking accessory" , "less tonnage" , "Barge; igniter" , "Supply boat" , "Kind of barge - carrying less?" .)
'flat-bottomed barge' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for scow that I've seen before include "Unpowered freight barge" , "Low boat" , "Wide-beamed dinghy" , "Flat-bottomed boat for cows" , "Vessel" .)
(Other definitions for trow that I've seen before include "Flat-bottomed barge; think, believe (archaic)" , "Think of the old days" .)