Optimism (4)
'optimism' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for hope that I've seen before include "Optimism - English-born US comedian" , "Expect and wish" , "Feeling of expectant desire" , "Bob --, US comic" , "Trust" .)
(Other definitions for help that I've seen before include "Assist, aid" , "Beatles' album; assist" , "Lend a hand" , "Support" , "Guide" .)