### Clue: Pirate's underpants trimmed with metal (4,4,6)
### Answer: LONG JOHN SILVER 
 ### Explanation: Definition: Pirate
 [ LONG JOHN ](underpants with close-fitting legs and reaching to the ankles) **plus**(trimmed with) SILVER(a metallic chemical element).
Defn: … in the book at 1,5 across