6a Conceited runner? Not half! (4)
7d Everyman 'so robust': on the contrary, he reached age of 969! (10)
20a After training, Perth girl is much more nimble (11)
Muchas gracias
7d. Methuselah
//The Bible says that Methuselah, a direct descendent of Seth, the third born son of Adam and Eve, lived to the ripe old age of 969 years//