Get a tube out for bread (8)
I believe the answer is:
baguette
'for bread' is the definition.
(baguette is a kind of bread)
'get a tube out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'get'+'a'+'tube'='getatube'
'getatube' with letters rearranged gives 'BAGUETTE'.
(Other definitions for baguette that I've seen before include "A long thin French loaf" , "Bread roll" , "Long narrow French loaf" , "Long French breadstick" , "Narrow French stick loaf" .)