Each answer to the three clues below begins with the name of an animal - repeated twice. Wordplay is fair play.

1. Canine social reformers
2. Myrmecologic collectors of short literary works
3. Bovine officemates
4. Feline natural disaster
5. Reptilian sailors

Answers:

1. DOG DO GOODERS 
2. ANT ANTHOLOGIES
3. COW CO-WORKERS
4. CAT CATASTOPHE
5. BOA BOATERS

Credit: Bill Cascadden (#1-3)