Training habit we shed tears about (7)
I believe the answer is:
sweater
'training habit' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'we shed tears about' is the wordplay.
I cannot quite see how this works, but
'we' is within the answer.
an anagram of 'tears' is 'sater' which is present in the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for sweater that I've seen before include "slave-driver" , "Re waste: it's a garment" , "Jumper or jersey" , "Heavy jersey" , "A present from Mum!" .)