The blast damaged middle section of equipped naval vessel (10)
I believe the answer is:
battleship
'naval vessel' is the definition.
(I've seen this before)
'the blast damaged middle section of equipped' is the wordplay.
'damaged' is an anagram indicator.
'middle section of' says to take the centre.
The middle of 'equipped' is 'ip'.
'the'+'blast'='theblast'
'theblast' is an anagram of 'battlesh'.
'battlesh'+'ip'='BATTLESHIP'
(Other definitions for battleship that I've seen before include "Large naval vessel" , "Hood, say" , "craft for action" , "Eisenstein film about 1905 revolt" , "Dreadnought" .)