Humanitarian organisation (3,5)
I believe the answer is:
red cross
'humanitarian organisation' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for red cross that I've seen before include "organisation offering aid" , "International organisation to help wounded in war" , "Intl. relief agency" , "International oranisation for treatment of wounded in war" , "International humanitarian organisation" .)