Possible Clues:

• Article appropriate to put inside long garment
• Secure article supporting English craft of musical theatre
• Apronlike dress
• G&S ship
• ''Little House on the Prairie'' garment
• Protective garment; a stage ship
• Gilbert's vessel is tied up back there
• Wear ship for Gilbert and Sullivan
• Dress a female put on at home, with small hole at edging
• Stagecraft, say, made use of apron?