Write song that shows taste (8)
I believe the answer is:
penchant
'taste' is the definition.
(synonyms)
'write song' is the wordplay.
'write' becomes 'pen' (synonyms).
'song' becomes 'chant' (song sung by a crowd).
'pen'+'chant'='PENCHANT'
'that shows' is the link.
(Other definitions for penchant that I've seen before include "Partiality" , "Strong liking, inclination" , "'Predilection, a strong liking (8)'" , "Predilection, preference" , "Inclination; taste" .)