Not a loud song, but it's dramatic (4)
I believe the answer is:
play
'it's dramatic' is the definition.
(a play is a drama)
'not a loud song' is the wordplay.
I cannot really understand how this works, but
'a' is found in the answer.
The remaining letters 'ply' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'but' acts as a link.
Can you help me to learn more?
(Other definitions for play that I've seen before include "Uncle's premises" , "Make sport" , "See 17" , "Scope - entertainment" , "Drama - latitude - sport" .)