DURBAN, Dec 8 (Reuters) - South African Tim Clark and Morten Madsen of Denmark shot five-under 60s, on a course shortened due to this week's heavy rain, to share the lead after the delayed Nelson Mandela Championship first round on Saturday. Lindani Ndwandwe of South Africa and Britain's Chris Lloyd were in a tie for third place on 61, one ahead of a group of 10 players. The opening event of the 2012-13 European Tour season made a late start after play was washed out on Thursday and Friday because of the waterlogged state of the Royal Durban Golf Club. ... More...