Related Clues:

• Parent to her Tom, oddly
• A familiar American mother
• US mother, in short
• 'US mother, informally (3)'
• Pa rent no Pa
• If she loses her head she becomes a totally different person
• She might be more of a fly-bynight with a grand difference
• Perhaps more of a fly-by-night than one for the home
• Thomas is up with her to sound like the start of 1 across
• Pa rent Ma
• Part of one's 12 across, but not the same at last
• More of a fly-by-night than a parent
• If she loses her head, she's someone quite different
• Seems more of a fly-by-night than a parent
• More of a nightie, perhaps, than a parent