Extension for student going abroad around November (10)

'extension for student going abroad around november' is the definition.
I can't tell whether this defines the answer.

'for student going abroad around november' is the wordplay.
'for' becomes 'pro' (as in being 'pro' or in favour of something).
'student' becomes 'L' (as in L-plates for learner drivers).
'abroad' indicates anagramming the letters (letters move around or go abroad).
'around' indicates putting letters inside.
'november' becomes 'N' (phonetic alphabet: alpha, bravo, charlie etc.).
'going' is an anagram of 'ongig'.
'ongig' placed around 'n' is 'onging'.
'pro'+'l'+'onging'='PROLONGING'

Can you help me to learn more?