My whole, composed of 19 letters, is a quotation from Milton's "Paradise Lost".
My 13, 7, 16, 18 is to be peevish, to worry.
My 15, 3, 5, 9 is broad.
My 4, 12, 19, 14 is deprivation.
My 11, 6, 17, 8 is observed.
My 10, 1, 2 is a carpenter's instrument.
Source (this is not intended to be used to look up the answer, but is posted under the policy on plagiarism of the Puzzle Stack Exchange website):
Source: The Queenslander (discontinued in 1939), without any specific author.