Related Clues:

• Childish pauses oddly cause annoyance
• Rule I violated during exercise is trifling
• Silly posh royalty occupying stately home
• Childishly trivial
• Said you must be in danger with drug, lacking maturity
• Behaving immaturely
• Silly electronic currency units rising retrospectively
• Silly and immature
• Unadulterated passage read out? That's just childish
• Childish anger follows regular helpings of prunes
• Silly head of union in danger before end of strike