If Moyes wants a big strapping forward to win headers, hold the ball up and battle against centre halves, then yes Everton would be having a look.I am not sure I would say Calvert-Lewin is not a good footballer!
He has planty of strong elements to his game and has been capped by England at U20,U21 and Full levels making 11 intenational appearances and scoring 4 goals.
However his weakness is he does not score a lot. Which, given that he is a striker, is a pretty key measure of success.
Add that to his injury record and I guess the question for Everton is: if he were available on a 'free transfer' would we bring him in?