Move quickly, getting second spicy dish (6)
I believe the answer is:
scurry
'move quickly' is the definition.
(I've seen this before)
'second spicy dish' is the wordplay.
'second' becomes 's' (common abbreviation).
'spicy dish' becomes 'curry' (I've seen this before).
's'+'curry'='SCURRY'
'getting' acts as a link.
(Other definitions for scurry that I've seen before include "Scamper" , "short horse race" , "Move hurriedly" , "Move quickly" , "Dash (like a mouse?)" .)