Extra bags seem, originally, meagre (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
sparse
'meagre' is the definition.
(I've seen this before)
'extra bags seem originally' is the wordplay.
'extra' becomes 'spare' (both can mean left over).
'bags' means one lot of letters goes inside another (bag can mean secures or steals).
'originally' indicates taking the first letters.
The first letter of 'seem' is 's'.
'spare' placed around 's' is 'SPARSE'.
(Other definitions for sparse that I've seen before include "Meagre, scanty" , "Thinly populated" , "Not much" , "Spares, being thin on the ground" , "In short supply" .)