More pleasant runs south of French resort (5)
I believe the answer is:
nicer
'more pleasant' is the definition.
('nice' is associated in meaning with 'pleasant')
'runs south of french resort' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'south of' is a charade indicator (letters next to each other).
'french resort' becomes 'nice' (I've seen this before**).
'r' after 'nice' is 'NICER'.
(Other definitions for nicer that I've seen before include "more accurate" , "improved" , "relatively pleasant" , "better" , "Even more 7 down!" .)