Loaf (5)
(Other definitions for olive that I've seen before include "Bitter fruit" , "Evergreen Mediterranean tree" , "A Med. fruit" , "girl" , "It's branch is a symbol of peace" .)
'loaf' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bread that I've seen before include "Eg, sourdough or rye" , "Staple food" , "Dosh (slang)" , "It may be made from meal" , "Lolly - basic food" .)