5d rummaging animal can head for garden (5)
R?o?t?n?
7d accepted new tenancy agreement with different date for collecting rent (8)
?T?O?N??
17a king unhappy about lively dance (7)
?Z?R??T
Daij - your letters for 5d were correct and it's definitely ROOTING - (kangar)ROO + TIN (can) + G (head of garden).
One to go on my grid: 22d Sitting, by turning can look out (5) s--n-e. Looks like SEANCE which is definitely a type of sitting ... but why?