Possible Clues:

• With a family one may be just about to lose one's breath
• Father torn by father
• But soft! A tear with a family
• One will have offspring: on average, roughly, ten
• Breathe heavily round about Dad or Mum
• Pa or Ma
• Block ____ (Child safety volunteer)
• That's what 27 across has been doing
• It's not 34 across that tore one
• Be out of breath round about for father