Hold back repeated melody (7)
I believe the answer is:
refrain
This might be a double definition.
'hold back' is the first definition.
(I've seen this before)
'repeated melody' is the second definition.
'refrain' can be an answer for 'melody' (thesaurus). I am not certain of the 'repeated' bit.
Can you help me to learn more?
(Other definitions for refrain that I've seen before include "Stop - chorus" , "The repeated lines at the end of verses" , "Musical phrase" , "Repeating line in a song, poem" , "Stop oneself (from doing something)" .)