Breathing excitedly with run out secured (2,3,3)
I believe the answer is:
in the bag
'secured' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for in the bag that I've seen before include "You'll find game here" , "As good as secured" , "like cat incapable of ratting?" , "Where mail may be" , "Virtually secured (informal)" .)