Repeatedly appeal to consume second pastry (6)
I believe the answer is:
samosa
'pastry' is the definition.
(I know that samosa is a type of pastry)
'repeatedly appeal to consume second' is the wordplay.
'repeatedly' indicates the doubling of some letters.
'appeal' becomes 'SA' (old-fashioned abbreviation for sex appeal).
'to consume' indicates putting letters inside.
'second' becomes 'mo' (both are short periods of time).
'sa' duplicated is 'sasa'.
'sasa' enclosing 'mo' is 'SAMOSA'.
(Other definitions for samosa that I've seen before include "Small Indian turnover, fried and served hot" , "Savoury turnover" , "Stuffed Indian pastry" , "Small Indian cake of meat or vegetables" , "savoury pastry" .)