Song about lamps (5)
I believe the answer is:
psalm
'song' is the definition.
(I've seen this before)
'about lamps' is the wordplay.
'about' is an anagram indicator.
'lamps' with letters rearranged gives 'PSALM'.
(Other definitions for psalm that I've seen before include "Church song" , "Sacred poem (written by King David?)" , "Song - hymn - prayer" , "A song which praises" , "Religious song" .)