Quote some pathetic errors in retrospect (6)
I believe the answer is:
recite
'quote' is the definition.
(thesaurus)
'some pathetic errors in retrospect' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'in retrospect' says the letters should be written backwards (in retrospect means looking back).
'eticer' can be found hidden inside 'pathetic errors'.
'eticer' backwards is 'RECITE'.
(Other definitions for recite that I've seen before include "Declaim, recount" , "Reel off" , "Intone" , "Speak lines from a poem or passage from book" , "Repeat aloud from memory, say a poem" .)