Answer please

[Puzzleseeker]

Silvery metallic element of the Lanthanide series chiefly obtained from the ores monazite and bastnaesite.
Group of the seven brightest stars in Ursa Major, also known as Charles's Wain.
Arrangement of the sails and other rigging on a ship or boat.
Slit in a woman's garment giving access to a pocket or fastening.

[Rollo]

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[pbeach]

http://www.theanswerbank.co.uk/Quizzes-and-Puz zles/Crosswords/Question697193.html