Saunter south with ogre (6)
I believe the answer is:
stroll
'saunter' is the definition.
(synonyms)
'south with ogre' is the wordplay.
'south' becomes 'S' (synonyms).
'with' means one lot of letters go next to another.
'ogre' becomes 'troll'.
's'+'troll'='STROLL'
(Other definitions for stroll that I've seen before include "Constitutional" , "Walk slowly and idly" , "Amble or ramble" , "Gentle walk" , "cinch" .)