Related Clues:

• Join in -- note pinched by thankless person
• Fuse molten granite alien's turned over
• Do a calculus calculation
• Mix in, where fire is lit? Not hard
• Combine eg nitrate compounds
• Where coals are not hot, mix with others
• Combine to replant giant tree
• Combine treating complex with medicine, ultimately
• One who wouldn't appreciate checking the second blown fuse
• Blend of cigarette tar -- get nicotine-free for rolling