Eastern American head of college keeps learner informed (10)

'eastern american' is the definition.
'Delawarean' can be an answer for 'american' (Delawarean is an example). I am not certain of the 'eastern' bit.

'head of college keeps learner informed' is the wordplay.
'head of college' becomes 'dean' (dean can mean the head of a college).
'keeps' means one lot of letters goes inside another (inserted letters are kept inside).
'learner' becomes 'l' (as in a learner driver with L-plates on their car).
'informed' becomes 'aware' (I've seen this in another clue).
'l'+'aware'='laware'
'dean' placed around 'laware' is 'DELAWAREAN'.

Can you help me to learn more?