Pouring in in a state of change (6)
I believe the answer is:
influx
'pouring' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'in a state of change' is the wordplay.
'a state of change' becomes 'flux' (I've seen this in another clue).
'in'+'flux'='INFLUX'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for influx that I've seen before include "Continual stream of people" , "Continual inflow" , "Arrival en masse" , "A flowing in of people" , "Entry of large numbers" .)