One resembling Daisy Donovan’s ending at the back (6)
I believe the answer is:
astern
'at the back' is the definition.
(I've seen this before)
'one resembling daisy donovan's ending' is the wordplay.
'one resembling' becomes 'as' ('as' can mean like or resembling).
'daisy' becomes 'ter' (I am not sure about this - if you are sure you should believe this answer much more).
'ending' suggests the final letters (the ending of the word).
The last letter of 'donovan' is 'n'.
'as'+'ter'+'n'='ASTERN'
Can you help me to learn more?
(Other definitions for astern that I've seen before include "Aft" , "Towards a ship's rear" , "State of S central US" , "Ran set (anag.)" , "Toward the back of a boat" .)