Sprite seen in hotel foyer (3)
I believe the answer is:
elf
'sprite' is the definition.
(an elf is a sprite)
'in hotel foyer' is the wordplay.
'in' says the answer is hidden in the clue.
'ELF' is hidden in the letters of 'hotel foyer'.
'seen' is the link.
(Other definitions for elf that I've seen before include "Goblin" , "Mischievous youngster" , "Fairy, pixie" , "Folk tale creature" , "Mischievous sprite" .)