UnScramble this Word: s a g l s?

Questions

Which west indian spin bowlers are immortalised in a calypso?

Which film soundtrack featured Glenn Frey,Patti Labelle, Shalamar and the pointer Sisters?

Which book starts Marley was dead?

Which radio 2 presenter once had a hit with a single called The Man form Laramie?

Which plant does this describe - leaves in equal pairs,dull purple flowers and black,cherry sized berries?