Mode of transport to go around store (4)
I believe the answer is:
mart
'store' is the definition.
(thesaurus)
'mode of transport to go around' is the wordplay.
'mode' becomes 't'.
'of transport' becomes 'ram' (I can't justify this - if you can you should believe this answer much more).
'to go around' says the letters should be written backwards (I've seen 'going around' mean this).
't'+'ram'='tram'
'tram' in reverse letter order is 'MART'.
Can you help me to learn more?
(Other definitions for mart that I've seen before include "Take tram to market" , "US shop; market" , "Trading centre" , "Place" .)