Romeo takes step back to go over again (5)
I believe the answer is:
recap
'go over again' is the definition.
(I've seen this before)
'romeo takes step back' is the wordplay.
'romeo' becomes 'r' (phonetic alphabet: alpha, bravo, charlie etc.).
'takes' means one lot of letters go next to another.
'step' becomes 'pace' (synonyms).
'back' says the letters should be written backwards.
'pace' reversed gives 'ecap'.
'r'+'ecap'='RECAP'
'to' acts as a link.
(Other definitions for recap that I've seen before include "Final summary" , "Retrospective summary" , "Quickly run through" , "Run through again (Inf)" , "go over chief points again" .)