A piece of bread sliced off roughly (6)
I believe the answer is:
around
'roughly' is the definition.
(around can mean roughly or approximately)
'a piece of bread' is the wordplay.
'piece' becomes 'r' (abbreviation for Rook).
'of' becomes 'o''.
'bread' becomes 'und' (I can't explain this - if you can you should give a lot more credence to this answer).
'a'+'r'+'o'+'und'='AROUND'
'sliced off' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for around that I've seen before include "Somewhere in the vicinity" , "On every side" , "In the area of" , "Here and there, sounds circular" , "More or less" .)