Someone who prefers the best portion of strudel — it is tasty! (7)
I believe the answer is:
elitist
'someone who prefers the best' is the definition.
'elitist' can be an answer for 'someone' (elitist is a kind of someone). I'm not sure about the remainder of the definition.
'portion of strudel it is tasty' is the wordplay.
'portion of' indicates a hidden word.
'ELITIST' is hidden within 'strudel it is tasty'.
Can you help me to learn more?
(Other definitions for elitist that I've seen before include "arrogant" , "One without the common touch" , "No egalitarian" , "Favouring a chosen few" , "(One who is) discriminating in favour of select few" .)