so i recently mastery 5'd him.
are you talking noobie to the game or noobie to him.
if you are new to the game or top in general i would say no, if you are just new to him he can be a bit tough to get used to.
the upside is not many people are used to fighting him, and he will never get banned lol.
the biggest learning curve comes from knowing how the minion AI works, you can really extend his threat range once you understand how their ai range works. focus on maxing your W or E first (W slow and range are very good at blocking skill shots and shutting down chases, E will give you your best sustain via the life steal.)
the other thing to remember is his minons gain AD and HP based on iirc 35% of yoricks, so manamune and warmog synergize well on him.
yorick imho is more of a tank/utility brawler, he is a lot harder to kill than most people think and being able to clone your ADC for a big surge in team damage (much more useful to use it this way than like a zilean ult) or when you want to bait a team with the clone