Questions from former American (4)
I believe the answer is:
exam
'questions' is the definition.
(a set of questions)
'former american' is the wordplay.
'former' becomes 'ex' (prefix meaning former or onetime).
'american' becomes 'Am' (abbreviation in some contexts).
'ex'+'am'='EXAM'
'from' is the link.
(Other definitions for exam that I've seen before include "Test (abbrev.)" , "One taken by candidate" , "End-of-course assessment" , "School test (colloq.)" , "Written test" .)