Site of plane crash (5)
I believe the answer is:
nepal
'site' is the definition.
'plane crash' is the wordplay.
'crash' indicates an anagram.
'plane' anagrammed gives 'NEPAL'.
'of' acts as a link.
(Other definitions for nepal that I've seen before include "Gurkhas' homeland" , "Himalayan republic" , "Country located mainly in the Himalayas" , "mountain state" , "Gurkha homeland" .)