4a)Willingdon Beauty (3,5)
The answer has to rhyme with the answer to 4b) Generates upheaval for young people(9) which has been answered as teenagers (anag of generates) therefore old major won't fit.
thank you for your replies. this is the second time I have posted the question and nobody has come up with a satisfactory answer yet, so I will go with Tooraks suggestion and maybe 4b will be invalidated.