Homes were wrecked at an unspecified location (9)
I believe the answer is:
somewhere
'an unspecified location' is the definition.
'homes were wrecked' is the wordplay.
'wrecked' indicates anagramming the letters.
'homes'+'were'='homeswere'
'homeswere' is an anagram of 'SOMEWHERE'.
'at' is the link.
(Other definitions for somewhere that I've seen before include "uncertain regarding place" , "In an unspecified place" , "Indefinite or unknown location" , "'. . . . . . . . . Over the Rainbow' (song)" , "Bernstein classic" .)