Article with sample of opinions about tango? Staggering! (10)
I believe the answer is:
astounding
'staggering' is the definition.
(thesaurus)
'article with sample of opinions about tango?' is the wordplay.
'article' becomes 'a' (the indefinite article in English).
'with' says to put letters next to each other.
'sample of opinions' becomes 'sounding' (as in sounding out people's thoughts).
'about' indicates putting letters inside.
'tango?' becomes 'T' (phonetic alphabet: alpha, bravo, charlie etc.).
'sounding' enclosing 't' is 'stounding'.
'a'+'stounding'='ASTOUNDING'
(Other definitions for astounding that I've seen before include "Amazing" , "Stunning" , "Extraordinary" .)