Sorry, should have explained mine:
44 Green Light, Light Work, Lightweight
68 Cheese Sauce, Cheesecake, Hard Cheese
Not happy with my answer for 64
Church Bell, Ian Bell (cricketer), Time bell?
64 Been thinking about this one but in vain. Thought Ian might have a six-letter word in front. Got Christchurch, Christian but can't tie it in with time. Just can't find a word that ties in with all three.