No party, it seems, will offer emergency response (3,4,2,1,5)
I believe the answer is:
any port in a storm
'emergency response' is the definition.
(proverbial assistance during a bad situation)
I can't explain the rest of the clue.
(Other definitions for any port in a storm that I've seen before include "Emergency accommodation when the weather's bad" , "desperate measure?" , "Beggars (if sailors) can't be choosers!" , "place for those in trouble?" , "accept help when in difficulty" .)