Juvenile (10)
There are a few possibilities for this:
adolescent
'juvenile' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for young that I've seen before include "Mormon pioneer" , "not getting on yet" , "like Lochinvar?" , "litter?" , "Of tender years" .)
'juvenile' is the definition.
(I know that child is a type of juvenile)
This is the entire clue.
(Other definitions for child that I've seen before include "Kid" , "Not an adult" , "Offspring" , "Little one" , "Son or daughter" .)
'juvenile' is the definition.
(I know that minor is a type of juvenile)
This is the entire clue.
(Other definitions for minor that I've seen before include "Like clubs" , "Secondary" , "Unimportant or unable to vote" , "Slight; little known" , "Little-known" .)
'juvenile' is the definition.
(I know that youth is a type of juvenile)
This is the entire clue.
(Other definitions for youth that I've seen before include "Adolescence and early manhood" , "Young man" , "Children" , "Freshness maybe" , "next generation" .)
'juvenile' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for adolescent that I've seen before include "Teenage" , "Youngster" , "Developing" , "Immature" , "One growing" .)