Comment from The Mail offering a general view perhaps (11,4)
I believe the answer is:
Here is my best explanation:
'general view perhaps' is the definition.
I can't judge whether this defines the answer.
'comment from the mail offering' is the subsidiary indication.
'comment' becomes 'observation' (observation is a kind of comment).
'from' means one lot of letters go next to another.
'the mail offering' becomes 'post' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a' is the link.
(Other definitions for observation post that I've seen before include "Lookout point", "lookout" and "army's advanced viewpoint".)