Pulls Americans (5)
I believe the answer is:
I believe this is a double definition.
'pulls' is the first definition.
(yanking is a kind of pulling)
'americans' is the second definition.
(Yank can informally mean an American)
(Other definitions for yanks that I've seen before include "Americans; pulls" , "Tugs" , "Pulls sharply" , "Physical jerks" .)