Baked items have received mark of approval but this is a bit dry! (10)
I believe the answer is:
breadstick
'this is a bit dry' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'baked items have received mark of approval' is the wordplay.
I cannot quite understand how this works, but
'have' could be 'read' (reading is a kind of having) and 'read' is found in the answer.
'mark' could be 'tick' (I've seen this before) and 'tick' is found in the answer.
'approval' could be 'bs' (BS is an example) and 'bs' is located in the leftover letters.
No letters remain.
This explanation may well be incorrect...
'but' acts as a link.
Can you help me to learn more?
(Other definitions for breadstick that I've seen before include "used to produce something to nibble" , "Grissino" .)