Import from Nice is facing upset (12)
I believe the answer is:
significance
'import' is the definition.
(I know that import can be written as significance)
'nice is facing upset' is the wordplay.
'upset' indicates anagramming the letters.
'nice'+'is'+'facing'='niceisfacing'
'niceisfacing' is an anagram of 'SIGNIFICANCE'.
'from' is the link.
(Other definitions for significance that I've seen before include "weight" , "Importance, meaning" , "Import" .)