Solutions construction zone marker has 7 entries with similar clues

• 4-letter words
• iousMarkers
• buoyFloating marker
• 5-letter words
• pylonEnd zone marker
• 9-letter words
• coastlineShore marker tails off internally
• mile-postDistance marker
• 11-letter words
• highlighterA broad marker pen used to overlay transparent fluorescent colour on a part of a text
• 13-letter words
• starting-postMarker from which competitors begin race