By contrast, this script was about our own backyard (7)
I believe the answer is:
whereas
'by contrast this script' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'about our own backyard' is the wordplay.
I cannot really understand how this works, but
'about' could be 'rea' (I've seen this in other clues) and 'rea' is present in the answer.
This explanation may well be incorrect...
'was' is the link.
Can you help me to learn more?
(Other definitions for whereas that I've seen before include "On the other hand" , "But on the contrary" , "In contrast with the fact that" , "Considering that" .)