Made weak payment after space gets drained (9)
I believe the answer is:
enfeebled
'made weak' is the definition.
(enfeebling is a kind of making weak)
'payment after space gets drained' is the wordplay.
'payment' becomes 'fee' (payment for a job).
'after' says to put letters next to each other.
'space' becomes 'en' (in printing, a space as wide as a letter 'n').
'gets' says to put letters next to each other.
'drained' becomes 'bled' (bleeding is a kind of draining).
'fee' put after 'en' is 'enfee'.
'enfee'+'bled'='ENFEEBLED'
(Other definitions for enfeebled that I've seen before include "Weakened" , "Exhausted" .)