The Clue Meeting that many a dad don't attend (abbr.)
The Answer PTA
The answer to the crossword clue is "PTA," which stands for Parent-Teacher Association. Many dads might not attend these meetings, which are typically held during the day or in the evening when they may have other commitments. The clue plays on the idea that not all parents, especially dads, make it to these important gatherings. Thus, "PTA" fits perfectly as an abbreviation for a meeting that some dads miss.