| SIRES | Rises secretly and fathers the young |
| SON | The Father the ___ and the Holy Spirit (The Trinity) |
| THOMASAQUINAS | After the four "great Latin Fathers", the earliest Doctor of the Church |
| TRIUNE | The Father, the Son, and the Holy Spirit, e.g. |
| SMUGGLER | One who moves goods in and out of a country secretly and illicitly (8) |
| ONTHEQT | Secretly, and this puzzle's title |
| REAPPEARED | Each prepared secretly and showed up a second time |
| BACKSTREET | Acting secretly, and typically illegally (10) |
| UNDERTHETABLE | Done secretly and out of sight (5-3-5) |
| PETE | English actor whose films include In the Name of the Father, The Usual Suspects and Brassed Off (4,13) |
| POSTLETHWAITE | English actor whose films include In the Name of the Father, The Usual Suspects and Brassed Off (4,13) |
| PAST | Father's the titular head no longer (4) |
| POPSTHEQUESTION | Proposes to suggest father's the puzzle! (4,3,8) |
| DEEPLAID | Profound to call back? Needs to be arranged secretly and elaborately (4-4) |
| BUG | It will enable one to listen secretly and annoy one (3) |
| ELOPE | Run away secretly and cut into here at regular intervals (5) |
| TURGENEV | Ivan ___, Russian author of the novels Rudin and Fathers and Sons (8) |
| PIPPA | Robert Browning's young girl gives father the pip (5) |
| HEIRAPPARENT | He and I attack father, the one expected to succeed |
| PAGODA | My Father, The Almighty -- and a place of worship (6) |
