It's bad for bread not to be covered (5)
I believe the answer is:
bared
'it's bad' is the definition.
I can't judge whether this definition defines the answer.
'bread not to be covered' is the wordplay.
'bread not' becomes 'bd' (I can't justify this - if you can you should give a lot more credence to this answer).
'to be' becomes 'are' (I've seen this in another clue).
'covered' indicates putting letters inside.
'bd' going around 'are' is 'BARED'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for bared that I've seen before include "Uncovered" , "Stripped" .)