Related Clues:

• Footballer's wife without reserve could be caustic
• Elegant exterior to army compound
• Gardener's aid has top off
• Volunteers in smart compound
• Chemical evidence of cannabis smoking?
• Classy when receiving thanks for fertiliser ingredient
• Strong alkali derived from burnt wood
• Hair bleach
• Chemical used to bleach hair
• Alkali used as fertiliser
• Changer of locks
• Alkaline compound
• Exercise to steer over farm animal with unnatural hair shade
• Top-up has exploded component of fertilizer
• The "P" in "PCS"