I must be dim, but I'm still stuck 19.Stop at the end of the Panama Canal.(5) 20. Anthem composed about number 50 was heartless.(3,3,3,) 31. Money to get into the castle? It must go up! (10) 36. There's no great difference in low value coins. (5,6) 64. Cut out the tax on household commodities!(6) 67. Money to provide cover for leg wound? Perhaps it's shrapnel! (11) 88. Act as expected in Lorna's part (2,4,3) Any help would be appreciated. Thank you in advance