Possess amphibian before redevelopment (3,4)
I believe the answer is:
new town
'redevelopment' is the definition.
Both the definition and answer are singular nouns.
Maybe they are linked in a way I don't understand?
'possess amphibian before' is the wordplay.
'possess' becomes 'own' (synonyms).
'amphibian' becomes 'newt' (newt is a kind of amphibian).
'before' means one lot of letters go next to another.
'own' after 'newt' is 'NEW TOWN'.
Can you help me to learn more?
(Other definitions for new town that I've seen before include "Basildon, perhaps ..." , "specially-built dwelling-place" , "Conurbation planned and built by the government" , "Milton Keynes, Telford or East Kilbride, for example" , "Planned settlement to relieve congestion" .)