Liking song by writer (8)
I believe the answer is:
penchant
'liking' is the definition.
(penchant is a kind of liking)
'song by writer' is the wordplay.
'song' becomes 'chant' (I've seen this before).
'by' means one lot of letters go next to another.
'writer' becomes 'pen' (I've seen this before).
'chant' put after 'pen' is 'PENCHANT'.
(Other definitions for penchant that I've seen before include "Leaning towards or liking for" , "Willingness" , "Partiality" , "Strong liking, inclination" , "weakness" .)