Attractive thing, Latino's principal accent (5)
I believe the answer is:
drawl
'accent' is the definition.
(drawl is a kind of accent)
'attractive thing latino's principal' is the wordplay.
'attractive thing' becomes 'draw' (I've seen this before).
'principal' suggests taking the first letters.
The initial letter of 'latino' is 'l'.
'draw'+'l'='DRAWL'
(Other definitions for drawl that I've seen before include "Speak with lengthy vowel sounds" , "Affected speech" , "Slow speech pattern" , "Speak slowly and affectedly" , "Actor James Stewart's way of talking" .)