Solutions Certificate of achievement/attainment has 5 entries with similar clues

• 5-letter words
• scripProvisional certificate of shares held
• 8-letter words
• diplomatambassador's certificate of qualification produced on time
• 10-letter words
• vannawhiteTV personality awarded a 2013 Guinness World Record certificate for "most frequent clapper" (2 wds.)
• credentialA document or certificate proving a person's identity or qualifications
• accustomedusual person charged admits switching vehicle certificate