Crossword Puzzle Query that ends some riddles

Clue: Query that ends some riddles

Procrastinator's query (ALREADY with 7 letters)
Beginning of Hamlet's query (TOBE with 4 letters)
It starts when diciembre ends (ENERO with 5 letters)
"Wanna start somethin'?" (TALKINTO with 8 letters)
Disciple's query (ISITI with 5 letters)
Pacific thatch (NETI-4 with 6 letters)
When SNL ends in NYC (ONEAM with 5 letters)
Rear ends of a sort (CABOOSES with 8 letters)
Where this grid's starred answers' ends have particular relevance (ONTHEPUZZLEPAGE with 15 letters)
It often ends in '-ly' (ADVERB with 6 letters)