Concoct a new tipple to contain first of rare seasonal fruit (6,5)
I believe the answer is:
'seasonal fruit' is the definition.
(fruit that matures in winter)
'concoct a new tipple to contain first of rare' is the wordplay.
'concoct' is an anagram indicator (I've seen 'concocted' mean this).
'to contain' indicates putting letters inside.
'first of rare' becomes 'r' (1st letter of 'rare').
'anewtipple' is an anagram of 'winteapple'.
'winteapple' placed around 'r' is 'WINTER-APPLE'.