Perhaps the print vession of the crossword is OK, but the online one isn't. 15a starts one cell further to the right and has six letters. 26a, the matching clue, ends one cell further to the left and also consists of six letters.
Ah...they must have caught up with themselves since I printed it off around 9 am, K. Then, both clearly said 7 letters and the grid was marked for that. Alarm over. Had me pondering needlessly for a while though! Cheers