Lights (5)
'lights' is the definition.
(lamp is a kind of light)
This is the entire clue.
(Other definitions for lamps that I've seen before include "Devices for giving light" , "light fittings" , "Lights" .)
'lights' is the definition.
(illumination is a kind of light)
This is all the clue.
(Another definition for illuminations that I've seen is " Lights".)