Roughly it means with more to one than to another (8)
I believe the answer is:
unevenly
'roughly' is the definition.
(thesaurus)
'it means with more to one than to another' is the wordplay.
I cannot really see how this works, but
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
'one' could be 'un' (I've seen this in other clues) and 'un' is located in the answer.
'another' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for unevenly that I've seen before include "Roughly or disproportionately" , "In inconsistent way" , "In an irregular way" , "Not in regular fashion" , "Not smoothly" .)