Sycophant becomes more and more two-dimensional? (9)
I believe the answer is:
flatterer
'sycophant' is the definition.
(I've seen this in another clue)
'more and more two-dimensional?' is the wordplay.
I cannot really see how this works, but
'two-dimensional?' could be 'flat' (I've seen this in another clue) and 'flat' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'becomes' acts as a link.
Can you help me to learn more?
(Other definitions for flatterer that I've seen before include "Sycophant" , "One uses butter" , "Person who imitates, perhaps" .)