Matches at night need them (6)
I believe the answer is:
lights
'matches' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for lights that I've seen before include "SECOND PART OF 13" , "See 2" , "Comes down" , "Lungs of sheep, pigs etc used as food" , "Ignites or illumines" .)