Thursdays are hard

Best clues:

10A Quite unable to top her inter city in UK (10)

Quite unable to (CANT) top (ie replaces the top of) hER inter (means BURY) city in UK = CANTERBURY

11A Clairvoyance about final days - so have a coffee (8)

Clairvoyance (ESP) about (RE) final day(S) SO = ESPRESSO, a coffee

1D Gus covers two points, one with brilliance (6)

GUS covers (is spread around) two points (E, N - two points of the compass) one (I) with brilliance = GENIUS

7D Exercise and art. Again, with direction, it bears fruit (4,4)

Exercise (PE) and ART. Again (RE) with direction (E) it bears fruit = PEAR TREE

16D To start discussion, bring in her work with a dinosaur (8)

TO start discussion (D, first letter of discussion) bring in (has inserted the following) HER work (OP, or operation which is work) with a dinosaur = THEROPOD