Left order moving in with relative (6-2-3)
I believe the answer is:
sister-in-law
'relative' is the definition.
(I've seen this before)
'left order moving in with' is the wordplay.
I cannot quite understand how this works, but
'left' could be 'l' (common abbreviation) and 'l' is found in the answer.
'in' is found in the answer.
'with' could be 'w' (short for with) and 'w' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for sister-in-law that I've seen before include "Person related to one's spouse" , "Relative by marriage" , "Relation by marriage" .)