Possible Clues:

• Animal poem husband's taken into terminal
• Sounds as if Catherine was not positively in debt
• The poetry that little Catherine produces is so negative, currently anyway
• The poetry of Catherine is purely negative
• Her current poetry is totally negative
• In composition, the coda is terminal
• Crooked cheat smuggling too many drugs in part of cell?
• Her poetry about ray is so negative
• Each dot could be seen in old TV technology
• Terminal at Heathrow initially breaks rules