Beauty spot in front of city's limits? (3,5)
I believe the answer is:
eye candy
'beauty' is the definition.
(both can mean an attractive person)
'spot in front of city's limits?' is the wordplay.
'spot' becomes 'eye' (both can mean to notice or observe).
'in front of' means one lot of letters go next to another.
'city's limits?' becomes 'CandY' (the edge letters or 'limits' of the word 'city').
'eye'+'candy'='EYE CANDY'
(Other definitions for eye candy that I've seen before include "'Informally, an attractive but intellectually undemanding companion (3,5)'" , "Only attractive people" , "Visually attractive thing" , "something worth looking at?" , "visual feast" .)