Prepared and available (5)
I believe the answer is:
ready
I believe this is a double definition.
'prepared' is the first definition.
(similar in meaning)
'available' is the second definition.
(similar in meaning)
'and' is the link.
(Other definitions for ready that I've seen before include "Fully-prepared" , "Prompt and adequate" , "Waiting" , "Cash; within reach" , "In addition" .)