Grow into something (6)
I believe the answer is:
become
(Other definitions for become that I've seen before include "Evolve into; suit" , "Suit; turn into" , "Undergo a change or development" , "Flatter" , "Develop into something" .)
I believe the answer is:
become
(Other definitions for become that I've seen before include "Evolve into; suit" , "Suit; turn into" , "Undergo a change or development" , "Flatter" , "Develop into something" .)