Overdrawn clubs must replace the computers etc to get out of debt (2,6)
I believe the answer is:
in credit
'overdrawn clubs must replace' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'computers etc to get out of debt' is the wordplay.
'computers etc' becomes 'IT' (short for Information Technology).
'to' means one lot of letters go next to another (I've seen this in other clues).
'get out of' becomes 'inc' (I can't justify this - if you can you should believe this answer much more).
'debt' becomes 'red' ('in the red' means 'in debt').
'inc'+'red'='incred'
'it' put after 'incred' is 'IN CREDIT'.
'the' is the link.
Can you help me to learn more?
(Other definitions for in credit that I've seen before include "Indirect kind of plus in the bank" , "Having money in the bank" , "Having money in one's account" , "Having a positive balance" .)