Celebrated crosses Switzerland scored (7)
I believe the answer is:
notched
'scored' is the definition.
(thesaurus)
'celebrated crosses switzerland' is the wordplay.
'celebrated' becomes 'noted' (synonyms).
'crosses' is an insertion indicator.
'switzerland' becomes 'ch' (short for Confoederatio Helvetica, its Latin name).
'noted' going around 'ch' is 'NOTCHED'.
(Other definitions for notched that I've seen before include "Nicked" , "marked" , "Indented, incised" , "Made incisions in (something)" , "Carved with a nick" .)