Insert a word in it's entirety into another word to form a new word. None of the letters are anagrammed. Each of the clues can be read as "Insert the first word into the second word to form the third word".
-1. delight -> authorize = pleasant
-2. append -> word following work or chess = infuriate
-3. a legume -> church part = mollify
-4. witch -> cosmetic = high fiber plant materials
-5. preserve -> discourage = pitcher
-6. skill -> a masked animal = caricature
-7. study -> balderdash = a gnawing mammal
-8. ovoid -> forbid = pauper
-9. tag -> staff = drinkable
-10. an eye part -> marrow = destroy gradually
Did you ever stop to think and then forget to start again?