3. Remember: Not everyone will have a copy of the crossword in front of them, so please write the clue EXACTLY as it appears, the number of letters required and which (if any) you already know e.g.
13d Excellent on-line resource for answering questions (10) A?SWE?B?NK
You need to avoid pressing the submit button until you have had chance to enter the question detail. It's better to use the crossword builder tool to fill the title box.
I assume the clue is 'slight but persistent illness"
You can add the missing info on letter count known pattern by replying to your own question.
Good luck