Is miles away perhaps from baked beans on top of toast (6)
I believe the answer is:
absent
'is miles away perhaps' is the definition.
I can't judge whether this definition defines the answer.
'baked beans on top of toast' is the wordplay.
'baked' indicates anagramming the letters.
'on top of' suggests taking the first letters.
The first letter of 'toast' is 't'.
'beans' anagrammed gives 'absen'.
'absen'+'t'='ABSENT'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for absent that I've seen before include "Not at a specified place" , "nowhere to be seen" , "Missing or dreamy" , "Not where one should be" , "AWOL" .)