Without question, sir lures wild animals (9)
I believe the answer is:
squirrels
'animals' is the definition.
(squirrel is a kind of animal)
'without question sir lures wild' is the wordplay.
'without' indicates putting letters inside.
'question' becomes 'q'.
'wild' is an anagram indicator.
'sir'+'lures'='sirlures'
'sirlures' anagrammed gives 'suirrels'.
'q' placed inside 'suirrels' is 'SQUIRRELS'.
(Other definitions for squirrels that I've seen before include "Hoards away" , "Nut-eating mammals" , "Arboreal rodents with bushy tails" , "Small tree-climbing animals with bushy tails" .)