Spherical Shape When Dressed As Ringrose (5)

[hatton02]

Spherical shape when dressed as Ringrose (5) O?B??
Capital Fellow follows unaided when hospital department leaves (6) ?O???D

[Captain2]

Orbic?

[Captain2]

http://www.thefreedictionary.com/Orbic

[Oldred]

London? - (a)lon(e) + don ?

[hatton02]

What is Ringrose? If it's orbic, the 6 letter clue is ?O?C?D and London is wrong. The D at the end is from GRANDAM, which I assume is right: Complicated anagram with name for a mature woman G?A???M

[Calibax]

Grannam (alt.of grandam )- anagram of ANAGRAM with N for A

[Calibax]

Orbed?

[Oldred]

grannam = grandam (anagram of anagram with 'n' substituted for an 'a'

[MargoTester]

Could it be orbit?

[Oldred]

sorry Calibax, had not refreshed

[hatton02]

It's now O?B?D so ORBED fits. Orb is a spherical shape, but why is "ED" "when dressed" and what is "as Ringrose"

[hatton02]

Ringrose will be based on John Ringrose as the puzzle has a theme of London Mathematical Society...

[hatton02]

Ah, I bet Ringrose is ROBED when he becomes a president of the London Mathematical Society which is an anagram of ORBED. I bet this is the answer. Thanks to all for their help