Deviously Aladdin releases ad to get heroine of The Exorcist (5)
I believe the answer is:
linda
'heroine of the exorcist' is the definition.
The definition suggests a singular noun which matches the answer.
'deviously aladdin releases ad' is the wordplay.
'deviously' is an anagram indicator (I've seen this in other clues).
'releases' indicates named letters should be taken away.
'aladdin' with 'ad' taken out is 'aldin'.
'aldin' is an anagram of 'LINDA'.
'to get' acts as a link.
Can you help me to learn more?
(Other definitions for linda that I've seen before include "girl" , "- Ronstadt, US singer" , "-- Gray, 'Dallas' star" , "23 [LOVELACE]" , "Girl's name (I, not Y)" .)