Memorised antler bends (6)
I believe the answer is:
learnt
'memorised' is the definition.
(I've seen this before)
'antler bends' is the wordplay.
'bends' is an anagram indicator (I've seen 'bending' mean this).
'antler' with letters rearranged gives 'LEARNT'.
(Other definitions for learnt that I've seen before include "Came to know" , "Acquired knowledge or skill" , "informed" , "Committed to memory" , "Heard" .)