More flexible to take Latin during meal (7)
I believe the answer is:
suppler
'more flexible' is the definition.
(I've seen this before)
'latin during meal' is the wordplay.
'latin' becomes 'l'.
'during' means one lot of letters goes inside another.
'meal' becomes 'supper' (supper is a kind of meal).
'l' inserted into 'supper' is 'SUPPLER'.
'to take' acts as a link.
(Other definitions for suppler that I've seen before include "more plastic" , "More flexible" .)