Clue: Sweet turns allowed for a pair of sixes maybe (6)
Answer: DUPLET
Explanation: Definition: a pair of sixes maybe
Reverse of PUD (pudding, sweet) + LET – a duplet is "a like throw of two dice", e.g. a double six; I think the surface is suggesting scores in figure skating, etc, though I see that the system in which 6 was the maximum score in such events was superseded in 2005