Only a bit biased (7)
I believe the answer is:
partial
'biased' is the definition.
(similar in meaning)
'only a bit' is the wordplay.
I cannot really understand how this works, but
'a' is present in the answer.
'bit' could be 'i' (resembles 1, a binary digit or bit) and 'i' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for partial that I've seen before include "Not complete or whole" , "Fragmentary" , "Not complete or total, maybe an eclipse" , "Biased or unfair" , "Showing favouritism" .)