One invited into Jane's lofty dwelling (5)
I believe the answer is:
eyrie
'lofty dwelling' is the definition.
(I've seen this before)
'one invited into jane's' is the wordplay.
'one' becomes 'i' (Roman numeral).
'invited into' means one lot of letters goes inside another.
'jane' becomes 'eyre' (fictional character Jane Eyre).
'i' inserted within 'eyre' is 'EYRIE'.
(Other definitions for eyrie that I've seen before include "nest site" , "Inaccessible place" , "elevated position" , "top spot" , "home hard to reach" .)