Mournful type's hit record (8)
I believe the answer is:
lamenter
'mournful type's hit record' is the definition.
I can't judge whether this definition defines the answer.
'hit record' is the wordplay.
'hit' becomes 'lam' (to 'lam' means to hit hard).
'record' becomes 'enter' (enter can mean to enter into a record).
'lam'+'enter'='LAMENTER'
Can you help me to learn more?
(Other definitions for lamenter that I've seen before include "One expressing grief" , "One expressing sorrow" , "One greeting" .)