Underscore "in years" (7)
I believe the answer is:
teenage
'underscore in years' is the definition.
The answer and definition are not the same part of speech.
'underscore in years' is the wordplay.
'underscore in' becomes 'teen' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'years' becomes 'age' (period of many years).
'teen'+'age'='TEENAGE'
Can you help me to learn more?
(Other definitions for teenage that I've seen before include "Youthful" , "Like a category of youngsters" , "Like one thirteen-nineteen years old" , "Relatively young" , "Eat gene to become young" .)
