Alternative PM that represents England for Shakespeare? (4,5,4)

'that represents england for shakespeare?' is the definition.
(quote from Shakespeare's Richard II)

'alternative pm' is the wordplay.
I cannot really understand how this works, but
'alternative' could be 'other' (I've seen this before) and 'other' is found within the answer.
'pm' could be 'eden' (former prime minister Anthony Eden) and 'eden' is located in the answer.
The remaining letters 'this' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).