"Whoops!" (2-2)
(Other definitions for doh that I've seen before include "Note; exclamation" , "an exclamation from someone who's annoyed with himself" , "Homeric grunt of annoyance" , "for 7 [HOMER] of course!" , "Stupid me!" .)
'whoops' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for yells that I've seen before include "Shouts loudly" , "Screams" , "Cries out" .)