Almost grown (7)
I believe the answer is:
teenage
(Other definitions for teenage that I've seen before include "Tea gene (anag.)" , "Gee, neat (anag)" , "Like a category of youngsters" , "Relatively young" , "Thirteen to nineteen" .)
I believe the answer is:
teenage
(Other definitions for teenage that I've seen before include "Tea gene (anag.)" , "Gee, neat (anag)" , "Like a category of youngsters" , "Relatively young" , "Thirteen to nineteen" .)