Muse for a lyricist (5)
I believe the answer is:
erato
'muse for a lyricist' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for erato that I've seen before include "One inspiring" , "Clio's sister" , "Source of artistic inspiration" , "Source of poetic inspiration" , "Arts patron" .)