Stagger away, say, without apparent effort (4,3)
I believe the answer is:
reel off
This clue is a double definition.
'stagger away' is the first definition.
(I've seen this before)
'say without apparent effort' is the second definition.
(to reel off is to say a list of things quickly)
(Other definitions for reel off that I've seen before include "Say (something) rapidly and effortlessly" , "run through quickly?" , "say, without apparent effort" , "Tell someone quickly" , "Speak very rapidly" .)