I'm on an unrestricted diet and rove around on the other part of the bus (8)
I believe the answer is:
omnivore
'i'm on an unrestricted diet' is the definition.
I can't tell whether this defines the answer.
'rove around on the other part of the bus' is the wordplay.
'around' is an anagram indicator.
'on' says to put letters next to each other.
'part of' says to take the initial letters (I've seen 'part' mean this).
'the bus' becomes 'mni' (I can't justify this - if you can you should give a lot more credence to this answer).
The initial letter of 'other' is 'o'.
'rove' with letters rearranged gives 'vore'.
'o'+'mni'='omni'
'vore' put after 'omni' is 'OMNIVORE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for omnivore that I've seen before include "One eating everything" , "Eater of everything" , "Meat and veg eater" , "I'll take in anything" , "Creature eating any type of food" .)