Biden: USA corruption is fair (8)
I believe the answer is:
unbiased
'is fair' is the definition.
(similar in meaning)
'biden usa corruption' is the wordplay.
'corruption' indicates an anagram.
'biden'+'usa'='bidenusa'
'bidenusa' is an anagram of 'UNBIASED'.
(Other definitions for unbiased that I've seen before include "without taking sides" , "fair" , "Impartial" , "Not favouring one side or the other" , "Not prejudiced or influenced" .)