### Clue: Lead, perhaps, in which you show your best (7)
### Answer: ELEMENT 
 ### Explanation: Definition: Lead, perhaps,in which you show your best
 Double defn: 1st: One of which;perhaps is lead; and 2nd: Reference to the phrase "in one's element", ie. in an environment that is naturally suited to or associated with one, and therefore in which one performs best.