Homebuyer so upset with ramshackle house wanting new beginning? (6)
I believe the answer is:
embryo
'beginning?' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for embryo that I've seen before include "Rudimentary state" , "Rudimentary plant contained in seed" , "Developing foetus" , "Stage in development of unborn child" , "Organism at early stage" .)