Once more with sheep – tails docked (4)
I believe the answer is:
anew
'once more' is the definition.
(I've seen this in another clue)
'with sheep tails docked' is the wordplay.
I cannot quite understand how this works, but
'with' could be 'w' (abbreviation) and 'w' is found in the answer.
The remaining letters 'ane' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for anew that I've seen before include "Afresh" , "From the beginning again" , "Wane in a different way, again" , "Once more (poetic)" , "Again but differently" .)