Cheeses spoken of for picnic (6)
I believe the answer is:
breeze
'for picnic' is the definition.
(both can mean something easy)
'cheeses spoken' is the wordplay.
'cheeses' becomes 'Bries' (Brie is an example).
'spoken' indicates a 'sounds like' (homophone) clue.
'bries' is a homophone of 'BREEZE'.
'of' acts as a link.
(Other definitions for breeze that I've seen before include "Gust" , "block-maker" , "is this enough to blow out candles?" , "Simple task" , "get the wind up" .)