Always allows out little hares (8)
I believe the answer is:
leverets
'little hares' is the definition.
'leverets' can be an answer for 'hares' (I have seen 'Young hares ' mean 'leverets' so perhaps 'hares' could also mean 'leverets'). I'm not certain of the 'little' bit.
'always allows out' is the wordplay.
'always' becomes 'ever' (synonyms).
'allows' becomes 'lets' ('let' can be a synonym of 'allow').
'out' indicates putting letters inside.
'ever' placed into 'lets' is 'LEVERETS'.
Can you help me to learn more?
(Other definitions for leverets that I've seen before include "small creatures" , "Set elver among young hares" , "Let verse envisage young hares" , "big-eared youngsters" , "Set elver to get young hares" .)