Sorry don’t work for clay so I can’t see your table exactly.
In general for industry I’d make a decision. Either use HubSpots existing dataset or create a secondary property.
Personally, I like keeping every thing as native to HubSpot as possible. I’d use GPT to match the industry to HubSpots options.
If you want to make a custom property, possibly could get away with a one line property because wherever clay is getting that data (probably LinkedIn) is presumably going to be consistent.