Clue: Boorish promenader against reggae not being represented (10)
Answer: VOETGANGER
Explanation: Definition: Boorish promenader
**V** ("against") +** *(reggae not) **[anag:*being represented*] 
*A voetganger is a South African infantryman or pedestraian (or a locust), and Dutch colonists in South Africa (more commonly known as Boers, were also known as Boors)