I proclaimed borders of country a beautiful sight (3,5)
I believe the answer is:
eye candy
'a beautiful sight' is the definition.
(term for an attractive person)
'i proclaimed borders of country' is the wordplay.
I cannot quite understand how this works, but
'i' could be 'eye' (I've seen this in other clues) and 'eye' is located in the answer.
'borders of country' could be 'candy' (edge letters of the word 'country') and 'candy' is present in the answer.
No letters remain.
This explanation may well be incorrect...
(Other definitions for eye candy that I've seen before include "something worth looking at?" , "'Informally, an attractive but intellectually undemanding companion (3,5)'" , "pretty images" , "Vacuous Adonis" , "One who is visually pleasing" .)