Overturned trading place's means of transport (4)
I believe the answer is:
tram
'of transport' is the definition.
'tram' can be an answer for 'transport' (tram is a kind of transport). I am not certain of the 'of' bit.
'overturned trading place's' is the wordplay.
'overturned' says the letters should be written in reverse.
'trading place' becomes 'mart' (I've seen this in another clue).
'mart' backwards is 'TRAM'.
'means' is the link.
Can you help me to learn more?
(Other definitions for tram that I've seen before include "Electric vehicle" , "The Luas, say" , "Electrically driven transport" , "Public transport vehicle" , "multi-faceted yarn" .)