Bloody hell - gross national product taking just seconds to bounce back (4)
I believe the answer is:
rare
'bloody' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for rare that I've seen before include "Still red inside (as hens' teeth?)" , "Infrequent like underdone meat" , "Not often seen - underdone" , "Meat that's lightly cooked" , "Unusual - exquisite" .)