Make out leaning was moving (5-7)
I believe the answer is:
heart-rending
'moving' is the definition.
(I've seen this before)
'make out leaning' is the wordplay.
'make' becomes 'hearing' (I can't justify this - if you can you should believe this answer much more).
'out' is an insertion indicator.
'leaning' becomes 'trend' (I've seen this in another clue).
'hearing' enclosing 'trend' is 'HEART-RENDING'.
'was' acts as a link.
Can you help me to learn more?
(Other definitions for heart-rending that I've seen before include "moving" , "Agonisingly sad" , "Greatly distressing" , "Poignant" , "Causing great sadness or distress" .)