Visiting Europe, sought change from S America (4)
I believe the answer is:
peso
'change from s america' is the definition.
(currency of several South American countries)
'visiting europe sought' is the wordplay.
'visiting' indicates the answer is hidden within the clue (the answer 'visits' the inside of the clue).
'PESO' is hidden within 'europe sought'.
(Other definitions for peso that I've seen before include "Latin American money" , "Currency of Mexico" , "Chilean currency" , "Unit of Mexican money" , "Mexican currency unit" .)