Bookish volume of Poe fairly regularly overlooked (8)
I believe the answer is:
literary
'bookish' is the definition.
(thesaurus)
'volume of poe fairly regularly overlooked' is the wordplay.
'volume of poe' becomes 'liter' (US spelling of litre, ie 'for Poe', US writer).
'regularly overlooked' means one should take alternating letters (letters removed at regular intervals).
The alternate letters of 'fairly' are 'ary'.
'liter'+'ary'='LITERARY'
(Other definitions for literary that I've seen before include "Bookish" , "Relating to books, etc" , "Learned" , "Associated with formal writing" , "Of or concerned with good books and writing" .)