Having supported right through, transgressed (7)
I believe the answer is:
strayed
'transgressed' is the definition.
The definition and answer can be both to do with motion as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'having supported right' is the wordplay.
I cannot quite understand how this works, but
'right' could be 'r' (common abbreviation) and 'r' is present in the answer.
'supported' could be 'stayed' (I've seen this before) and 'stayed' is found in the leftover letters.
No letters remain.
This explanation may well be incorrect...
'through' is the link.
Can you help me to learn more?
(Other definitions for strayed that I've seen before include "Wandered; digressed" , "Went wrong" , "Dry seat (anag) - got lost" , "Went off course" , "Went off violin" .)