Relief for a civic leader on tour (7)
I believe the answer is:
contour
'relief' is the definition.
(thesaurus)
'a civic leader on tour' is the wordplay.
'leader' says to take the initial letters.
The first letter of 'civic' is 'c'.
'c'+'on'+'tour'='CONTOUR'
'for' acts as a link.
(Other definitions for contour that I've seen before include "Defining line" , "Map line of equal altitude" , "Outline (of land)" , "Outline, profile" , "Silhouette" .)