Broadcast losing sad musical slide (9)
I believe the answer is:
glissando
'musical slide' is the definition.
'glissando' can be an answer for 'slide' (sliding musical effect). I am unsure of the 'musical' bit.
'broadcast losing sad' is the wordplay.
'broadcast' indicates anagramming the letters (letters scattered or cast around).
'losing'+'sad'='losingsad'
'losingsad' with letters rearranged gives 'GLISSANDO'.
Can you help me to learn more?
(Other definitions for glissando that I've seen before include "Sliding effect in moving from one musical note to another" , "Slide between two notes" , "note series rapidly executed" , "Effect produced by playing a series of notes very rapidly" , "Note with sliding pitch" .)