Answer: hollow

AnswerCrossword Clue
HOLLOWLike jack-o'-lanterns or meaningless victories
hollowHaving a hole or empty space inside
hollow(of a thing) Having a depression in its surface; concave
hollow(of a sound) Echoing, as though made in or on an empty container
hollowto remove the interior / not solid
hollowWithout significance
hollowInsincere
HOLLOWSunken
HOLLOWEmpty inside
HOLLOWIchabod's was Sleepy
HOLLOWInsincere
HOLLOWLike a jack-o'-lantern
HOLLOWMeaningless
HOLLOWLike jack-o'-lanterns
HOLLOWLike the Trojan horse
HOLLOWEmpty
HOLLOWUnsatisfying, as a victory