But not too old to get a bit enraged? (4)
I believe the answer is:
aged
'but not too old' is the definition.
'aged' can be an answer for 'old' (similar in meaning). I am not sure about the 'but not too' bit.
'get a bit enraged?' is the wordplay.
'AGED' is hidden within the letters.
But, I'm not sure how this is indicated.
'to' is the link.
Can you help me to learn more?
(Other definitions for aged that I've seen before include "Long in the tooth" , "Elderly" , "Advanced in years" , "Time-worn" , "not like a callow youth" .)