Jumbo 814 (Times)

[chrispybacon]

7d - Wicked princess overcomes a head of state.
6 letters R - A - A -

42a- Article to add to casserole?
6 letters - - - A - O
( Is it tomato or potato or something and why?

50d - Depart for Arabia in pilgrim ship
5 letters - - S - i

[tyrepill]

50d pilgr(im shi)p

[Wizlon50]

Regain
Imshi - Arabic for go away

[tyrepill]

7d Re(a)gan

[antlad]

Reagan (from King Lear)

[Wizlon50]

Sorry 7d can't be regain. My mistake.

[Wizlon50]

42a looks like potato - "Pot" is casserole + "a" article added to "to"

[Timessolver]

Reagan is the wicked princess in King Lear & also President Reagan (head of state)

[kayakamina]

The Princes is REGAN and overcomes A gives REAGAN

head of state/

[Catron]

The princess in King Lear is REGAN. The wordplay is that given by tyrepill.

[Timessolver]

50d 'imshi' is present in the clue 'pilgrIMSHIp' & means 'go away!' i.e. 'depart' in Arabic.