House plant turning blue first (8)
I believe the answer is:
dwelling
This could be a double definition.
'house' is the first definition.
(somewhere people live)
'plant turning blue first' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for dwelling that I've seen before include "Domicile" , "Living; abode" , "house" , "Living, residing" , "lodge" .)