I am stuck with the last clue in the Guardian Genius 199. Any help /hint will be greatly appreciated.
Instructions for the crossword: Twenty-six solutions, not further defined, are partners in familiar pairings. The required entry in the grid for each of these clues is the other partner. (Letter counts are for the words to be entered.)
23d Start to publicise appeal, when out of cash ( 4)
I have t?s?