Clue: Literary adventurer disturbed lingerer grabbing tool for opening letter (9,6)
Answer: PEREGRINE PICKLE
Explanation: Definition: Literary adventurer
 [ **Anagram of**(disturbed) LINGERER **containing**(grabbing) PICK(a tool for breaking up ground or stone) ] **contained in**(for opening) PEE(the letter "P").
Defn: …, protagonist in "The Adventures of Peregrine Pickle", first published in mid-18th C.