Possible Clues:

• Politician in love trio's outed as a fake
• Among Us saboteur
• Assumer of false identity
• Unfortunate promise over time leads to fraud
• Shammer’s way to interrupt beggar’s declaration?
• ___ syndrome ('I don't belong here' feeling)
• Unlimited time following gold fraud
• Philistine's job, on the other hand, is a fake
• Fake spirit — rubbish, so returned
• Phoney person gets nothing right, going after this person's job