After tea I knock up Indian speciality (7)
I believe the answer is:
chapati
'indian speciality' is the definition.
(type of Indian bread)
'after tea i knock up' is the wordplay.
'after' says to put letters next to each other.
'tea' becomes 'cha' (cha is a type of tea).
'knock' becomes 'tap' (synonyms).
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'i'+'tap'='itap'
'itap' back-to-front is 'pati'.
'cha' put next to 'pati' is 'CHAPATI'.
(Other definitions for chapati that I've seen before include "Sort of bread" , "I may be taken in with Indian" , "Indian food" , "Piece of bread (Indian)" , "Unleavened bread of India" .)