Capable of working at till (2,2)
I believe the answer is:
up to
This could be a double definition.
'capable of' is the first definition.
(I've seen this before)
'working at till' is the second definition.
'up to' can be an answer for 'till' (thesaurus). I am not certain of the 'working at' bit.
Can you help me to learn more?
(Other definitions for up to that I've seen before include "Incumbent upon" , "Engaged in doing" , "Plotting" , "working at > till" , "Busy with" .)