The grid definitely says 3 and 5 for the number of letters.
I think 67d is gorge, which makes
77a ?e? e???e
andcan anyonehelp with 73a, I think I've made a real mess of the bottomg LH corner ....
73a sentimental (7) ??u?r??
65d ostentation (4) p???
60d hand tool (7) s?a????