His son, Steve Llewell, said today they would always be grateful for the medical team who gave his father the satisfaction during the last few months of his life of not being the centre of attention whenever he went out in public.
The process of rebuilding his face was an involved one for Clifford and his family, requiring more than 70 trips to Waikato Hospital.
"We have done everything possible for our dad."
For the past 18 months, Clifford lived with his son and his wife, Brenda Llewell.
However, during the past few months, the cancer took hold and Clifford lost his sight, which meant he also lost his three great loves - the TAB, Sky Sport and reading/doing crosswords.
Steve said they were unable to care for him properly once his sight went, so he was moved into Bupa The Gardens Rest Home and Hospital, where Brenda worked as a caregiver.
"I just really want to put my dad on a pedestal. He has gone through some of the worst times more than most people with cancer have to go through. No one likes to have their face cut off. He has weathered the storm throughout that and has been a humble man the whole time. I could go on and on about my dad."
Steve said his father's condition had got worse since Friday and the family had been keeping a 24-hour vigil since.
"He died at 6.55am today. I was sitting right next to him holding his hand."
He said it was his father's wish not to have a "fuss" for his funeral so there will be a short service and burial tomorrow at Kauae Cemetery at 1pm.