### Clue: Where lies circulating around famous Downing Street figure, might this have extra traction? (3-7)
### Answer: SIX-WHEELER 
 ### Explanation: Definition: might this have extra traction?
An envelope ('around') of X (Roman numeral 10, 'famous Downing Street figure') in SIWHEELER, an anagram ('circulating') of 'where lies'