Solutions French cake has 4 entries with similar clues

• 6-letter words
• cognacFrench town (French brandy)
• 7-letter words
• pasteurfrench chemist‘s gone over french street, heading north
• 8-letter words
• ensconceSettle in French café primarily tucking in to cake
• 13-letter words
• devils-islandRocky island off the coast of French Guiana used as French prison colony