Print crosswords with beautiful icons instead of explanations.

Show the pictures to the child.
If you know what they're showing, tap the Menu icon (bottom-right) and then select Share.
Print the shared picture and let the child solve the crossword puzzle.

If you have a printing program on your phone - you can select it directly from the sharing menu. If not, you can send the image via email or messaging to a device that can print.

If you want higher picture quality, rotate the phone to landscape position.
You can drag the crossword up if it doesn't add up on the screen.

For even higher picture quality (with clearer details), use a tablet.
A wider screen makes pictures more detailed.