What might have altered a politician such as Lloyd George? (7)
I believe the answer is:
literal
'george?' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for literal that I've seen before include "according to specifications" , "excluding metaphors" , "mistake" , "Exact (translation)" , "Lacking imagination; misprint" .)