Possible Clues:

• Verse of 14 lines
• Certain poem
• Browning work
• When your boy gets to 4 across, is this what he will catch inversely?
• Frost form
• Donne piece
• Boy with fishing gear, more than a dozen lines
• Boy's final poem
• Sent on the verse form
• One begins 'Shall I compare thee to a summer's day?'