My front derailleur makes a grinding noise in specific gears?

My bike has a 3x8 drivetrain and when my rear gears are on 7 and over (Front gear on 1) I look down and see and hear the chain grinding against the front derailleur. I'm not sure if it's cross chaining but I've seen some people that can do smallest cog at front and smallest cog at rear with no visible... show more My bike has a 3x8 drivetrain and when my rear gears are on 7 and over (Front gear on 1) I look down and see and hear the chain grinding against the front derailleur. I'm not sure if it's cross chaining but I've seen some people that can do smallest cog at front and smallest cog at rear with no visible issues. Could it be that my front derailleur needs adjusting?
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