Request directions before outing? (7)
I believe the answer is:
Here is my best explanation:
'request' is the definition.
'directions before outing?' is the subsidiary indication.
'directions' becomes 'en' (I've seen this in other clues**).
'before' means one lot of letters go next to another.
'outing?' becomes 'treat'.
(Other definitions for entreat that I've seen before include "Ask (someone) anxiously", "petition", "Ask (someone) earnestly", "Beg earnestly, beseech", "Earnestly beg", "Pray", "Beg earnestly, plead with", "Beg earnestly, implore", "Beg earnestly, appeal" and "Petition".)