Gradual increase (6)
'gradual increase' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for growth that I've seen before include "Process of development" , "Process of enlargement" , "Process of increase" , "Tumour - enlargement" , "Augmentation" .)
'gradual increase' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for build-up that I've seen before include "Gradual increase" , "Preliminaries leading to a climax" .)