Long after everyone has no doubt showered and gone home I am still
struggling with that 'Duties' clue, for which I have the unlikely letters
ENDE?U, the U being the fourth of my thematic gap-fillers.
Also the preceding 'Fringes' clue where I have the equally unhelpful
I?ANNI. Otherwise my grid is complete and seems convincing, including the symbol, which I have positioned one column to left of centre.
Would live to finish before 4771 turns up so any hint welcome!