Unusual appetisers not apt as a gift (7)
I believe the answer is:
pressie
'a gift' is the definition.
(short for 'present')
'unusual appetisers not apt' is the wordplay.
'unusual' is an anagram indicator.
'not' suggests deleting specific letters.
'appetisers' with 'apt' taken out is 'peisers'.
'peisers' is an anagram of 'PRESSIE'.
'as' acts as a link.
(Other definitions for pressie that I've seen before include "Informally, offering" , "Something freely given" , "Gift (colloq.)" .)