30a. Shakespearean supplement's language sacrificing spelling (4) -E--.
28a. Milton's rulers succeeded with right question from the right -S--.
3d. Rookeries no longer found in opening of smokey chimneys (5) SLU-S.
3 slums---a dense collection of housing, especially in a slum area.
"they congregate cheek by jowl in unwholesome rookeries chosen for cheapness and convenience"