1) Culminating point 2) High noon 3) Hour 4) Midday 5) Midday, to the fancy 6) Midnight 7) Noon 8) Noonday 9) Period of greatest success 10) Poetic tide 11) The middle of the day 12) The time of noon 13) Time of day 14) Twelve 15) Twelve noon 16) When shadows disappear Found on https://www.crosswordclues.com/clue/noontide
Noon'tide` noun [ From noon + tide time; confer Anglo-Saxon n...ntīd the ninth hour.] The time of noon; midday. Found on http://www.encyclo.co.uk/webster/N/33