Answer:
The appositive or appositive phrase is:
"the revered English playwright"
Explanation:
An appositive is a word or phrase placed immediately after a noun with the purpose of renaming it. In other words, appositives offer extra information about the noun they follow. Depending on how essential that information is for the sentence, the appositive may be placed between commas or not.
In the sentence we are analyzing here, the appositive is "the revered English playwright," and it is offering further information about William Shakespeare. It is a nonessential or nonrestrictive appositive, which means it can be removed from the sentence without harm to the meaning being conveyed. Nonrestrictive appositives are placed between commas, as is the case here.
