Secular; song (3)
I believe the answer is:
lay
This clue is a double definition.
'secular' is the first definition.
(synonyms)
'song' is the second definition.
(I know that lay is a type of song)
(Other definitions for lay that I've seen before include "Was lying" , "Put down (eg, card)" , "Not ordained; song" , "Place (bet)" , "Not clerical or professionally qualified" .)