Tongue served in hotel at Inverness (5)
I believe the answer is:
latin
'tongue' is the definition.
(I know that Latin is a type of Italic)
'in hotel at inverness' is the wordplay.
'in' says the answer is hidden in the clue.
'LATIN' is hidden within 'hotel at inverness'.
'served' acts as a link.
(Other definitions for latin that I've seen before include "ancient tongue" , "Old Roman language" , "Parent language of French,Romanian" , "The language of old Rome" , "Ancestor of French, Romanian" .)