Possible Clues:

• Too adventurous with series of deliveries completed, say
• Reckless cricketer's task completed, we hear
• Too confident and daring
• Too adventurous with series of deliveries completed, we hear
• Excessively adventurous series of deliveries completed, we hear
• Nothing mature about part of speech that's too outspoken
• Excessively daring
• Excessively confident