Our PC crashed? Here's complaint (5)
I believe the answer is:
croup
'complaint' is the definition.
(croup is a kind of disease)
'our pc crashed?' is the wordplay.
'crashed?' indicates an anagram (I've seen 'crash' mean this).
'our'+'pc'='ourpc'
'ourpc' with letters rearranged gives 'CROUP'.
'here's' acts as a link.
(Other definitions for croup that I've seen before include "Throat condition with a hacking cough" , "Disease of the young with fever and breathing difficulty" , "Children's disease causing difficulty in breathing" , "Illness" , "Throat infection; horse's hindquarters" .)