Debt-saddled clothing retailer J. Crew has asked bondholders to conduct a debt-for-equity swap that involves extending the maturity of some $567 million in notes. The news comes about a week after CEO Mickey Drexler stepped down after leading J. Crew for more than 14 years. The company has been PE-backed since it was acquired by TPG and Leonard Green & Partners for $3 billion in 2011 and has encountered a variety of struggles in the years since.