Arks can sail around it, but no motor cars! (4)
I believe the answer is:
sark
'sail around it but no motor cars' is the definition.
I can't tell whether this defines the answer.
'arks can' is the wordplay.
'can' indicates anagramming the letters (I've seen 'canned' mean this (canned can mean drunk)).
'arks' is an anagram of 'SARK'.
Can you help me to learn more?
(Other definitions for sark that I've seen before include "One of the Channel Islands" , "One of Channel Isles" , "shirt from Scotland" , "English Channel isle" , "Hereditarily-ruled Channel Island" .)