Appearing later: coyote, initially tamed, crossed with setter (3,2,4)
I believe the answer is:
yet to come
'appearing later' is the definition.
(something yet to come has not yet appeared)
'coyote initially tamed crossed with setter' is the wordplay.
'initially' says to take the initial letters.
'crossed' indicates an anagram.
'with' is a charade indicator (letters next to each other).
'setter' becomes 'me' (the setter of the clue).
The initial letter of 'tamed' is 't'.
'coyote'+'t'='coyotet'
'coyotet' anagrammed gives 'yettoco'.
'yettoco'+'me'='YET TO COME'
(Another definition for yet to come that I've seen is " Last visitor in 5 [A CHRISTMAS CAROL]".)