Large hole a donkey gets round and past (5)
I believe the answer is:
abyss
'large hole' is the definition.
'abyss' can be an answer for 'hole' (I have seen 'Deep hole ' mean 'abyss' so perhaps 'hole' could also mean 'abyss'). I am not certain of the 'large' bit.
'a donkey gets round and past' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
'past' could be 'by' (as in years gone by) and 'by' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for abyss that I've seen before include "canyon?" , "depths of sea" , "deep depression" , "Deep pit" , "Deep gulf" .)