Transparent, as some veils

• Refuse to be fooled by
• Don't be fooled by such clothing
• Read between the lines
• Clear to detect the lies
• Those huge pants Romeo wears not hiding much
• Like clothes so sheer, they're barely visible, and a hint to this puzzle's theme
• Don't be fooled by

Wiktionary Word definitions in Wiktionary
a. (alternative form of see-through English)