All the answers have colours in them, stuck on these few....
2) what cake is hidden in the trees (5,6,6)
4) do you eat these or phone a friend (10)
16) overnite from the USA (3,3)
20) the commonwealth (4)
23) sad night light (4,4)
29) cat was here in space (3,5)
34) a good wine (8)
38) sad american state (4, 6)
39) tarzan (4,9)
46) give us a twirl (6,7)
50) big ship valerie sailed in (4,5)
51) very patriotic (3,5,3,4)