Point a lot out, maybe, as sound (5)
I believe the answer is:
tonal
'as sound' is the definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I don't see?
'point a lot out' is the wordplay.
'point' becomes 'n' (N is an example).
'lot' becomes 'tol' (I am not sure about this - if you are sure you should believe this answer much more).
'out' is an insertion indicator.
'n'+'a'='na'
'na' inserted inside 'tol' is 'TONAL'.
'maybe' acts as a link.
Can you help me to learn more?
(Other definitions for tonal that I've seen before include "Relating to conventional keys and harmonies" , "According to musical key" , "of pitch" , "Relating to music using conventional harmony" , "To do with vocal or musical sound" .)