Have answered my own question after a bit of research - vertical stanchons under the boat deck - very good looking ships - the streamlined funnels of the "I" class were not an improvement in my opinion
yes peter 83, I agree with your research, just found that myself. And looking closely at her stern and balancing and counting the letters against the POR Southampton, which wraps around her stern and because we all liked a symmetrical view of the names on the back end, I would say this is either Cretic or Canopic but not Carnatic, OK and my money's on Cretic.
I can't help with the name - though Ozzie's reasoning seems sound - but I did wonder if Shaw Savill had trouble finding words beginning with C and ending with ic. My dictionary soon reassured me there's no shortage. 'Cannibalistic' would probably have been a bit too long, while the likes of 'Chronic', 'Caustic', 'Colic' and 'Carcinogenic' might have created an undesirable impression. 'Cataclysmic' and 'Catastrophic' would have had similar drawbacks, as well as being on the long side, but 'Capitalistic' would probably have been spot-on. Anyway, it seems they moved on up the alphabet before they needed to consider these possibilities.
Regards to all who have contributed to the debate. I never suspected my indifferent photo would provoke such interest.