Cape put on e.g., Elizabeth I, about to admit ruler (7,4)
I believe the answer is:
crowned head
'ruler' is the definition.
(crowned head is a kind of ruler)
'cape put on e g elizabeth i about to admit' is the wordplay.
'cape' becomes 'c' (abbreviation used on maps).
'put on' is a charade indicator (letters next to each other).
'e g elizabeth i' becomes 'redhead' (Elizabeth I had red hair).
'about' is an insertion indicator.
'to admit' becomes 'own' (own can mean to admit or acknowledge).
'redhead' enclosing 'own' is 'rownedhead'.
'c'+'rownedhead'='CROWNED HEAD'
(Another definition for crowned head that I've seen is " King or queen".)