Really struggling with this one. Please help.
16acc A toilet fitted with a CCTV on top of roof, whose main aim is to keep undesirable party out. (8, 5) 
- A -  T - - - L  - O - E -
[anagram make-up unclear to me but something COVER perhaps]
7 Down (7) Talks lovingly about politician initially eager to score 
- I - P - - - [simpers fits but messes up other solutions!] 
19 down Caught inside, Thomas screwed bear (7)
- T - - - - -
Grateful for any help.