Way to take a new line when perhaps too old (6)
I believe the answer is:
senile
'perhaps too old' is the definition.
'senile' can be an answer for 'old' (similar in meaning). I'm not certain of the 'perhaps too' bit.
'way to take a new line' is the wordplay.
'way' becomes 'se' (I can't justify this - if you can you should believe this answer much more).
'to take' is an insertion indicator (inserted letters are taken in).
'a new' indicates an anagram.
'line' is an anagram of 'enil'.
'se' placed around 'enil' is 'SENILE'.
'when' is the link.
Can you help me to learn more?
(Other definitions for senile that I've seen before include "Suffering infirmities of old age" , "In one's dotage" , "Relating to old age" , "Suffering from old age's weaknesses" , "Old and infirm" .)