Completed film a step too far? (9)
I believe the answer is:
overshoot
'a step too far?' is the definition.
I can't tell whether this defines the answer.
'completed film' is the wordplay.
'completed' becomes 'over' (synonyms).
'film' becomes 'shoot' (synonyms).
'over'+'shoot'='OVERSHOOT'
Can you help me to learn more?
(Other definitions for overshoot that I've seen before include "Fly beyond" , "Go past the mark" , "Go too far" , "Taxi too much, perhaps" , "Go past unintentionally" .)