A journal on ecstasy in English, it's all agley (4)
I believe the answer is:
ajee
'all agley' is the definition.
I can't tell whether this defines the answer.
'a journal on ecstasy in english it's' is the wordplay.
'journal on ecstasy in english' becomes 'je' (I am not sure about this - if you are sure you should believe this answer much more).
'it' becomes 'e' ('e' can mean 'electronic' which is similar to 'IT').
'a'+'je'+'e'='AJEE'
Can you help me to learn more?
(Other definitions for ajee that I've seen before include "astray in Ayr?" , "off the straight for McRae?" .)