Solutions Residue from coal used as fuel has 4 entries with similar clues

• 7-letter words
• shudderShake from/with fear
• clinkerSolid residue in ashes from burnt coal
• 8-letter words
• deadlockSituation from/in which no progress can be made
• 9-letter words
• briquetteSmall brick of compressed coal dust used as fuel at barbecues