I see star chopping out line in front (5)
I believe the answer is:
ahead
'in front' is the definition.
(synonyms)
'i see star chopping out line' is the wordplay.
I cannot really see how this works, but
'i' could be 'a' and 'a' is present in the answer.
'line' could be 'head' (head is a kind of line) and 'head' is found in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ahead that I've seen before include "In the vanguard" , "In the lead, in advance" , "advanced" , "Winning" , "In front as in race" .)