Attractive area where I am deflecting bombs (8,5)
I believe the answer is:
magnetic field
'attractive area' is the definition.
(I've seen this before)
'i am deflecting bombs' is the wordplay.
'bombs' indicates anagramming the letters.
'i'+'am'+'deflecting'='iamdeflecting'
'iamdeflecting' with letters rearranged gives 'MAGNETIC FIELD'.
'where' acts as a link.
(Other definitions for magnetic field that I've seen before include "Attractive area" , "It can pull some objects" .)