Wander street, then go round and round (6)
I believe the answer is:
stroll
'wander' is the definition.
(thesaurus)
'street then go round and round' is the wordplay.
'street' becomes 'st' (abbreviation).
'then' means one lot of letters go next to another.
'go round and round' becomes 'roll' (I've seen this in another clue).
'st'+'roll'='STROLL'
(Other definitions for stroll that I've seen before include "A pleasant and leisurely walk" , "swan" , "Constitutional" , "Walk in a leisurely way" , "Amble or ramble" .)