Possible Clues:

• Repurposing curtains cut up, one uses needles
• One using needles to fix cut-up curtains
• Therapist involved in sharp practice?
• Cut up curtains (anag) — complementary therapist
• Needle-worker found in practice
• One doing needlework for therapy?
• Needleworker accidentally cut up curtains
• See 38-Across
• Needle therapist