In Peru rallies are held in the country (5)
I believe the answer is:
rural
'in the country' is the definition.
(rural means in the countryside)
'in peru rallies are held' is the wordplay.
'in' indicates a hidden word.
'RURAL' is hidden in the letters of 'peru rallies held'.
(Other definitions for rural that I've seen before include "Sort of dean" , "Rustic" , "Countryfied" , "Arcadian" , "covering the country" .)