Judge regularly gets into debt using dodgy estimate of income (6)
I believe the answer is:
budget
'dodgy estimate of income' is the definition.
I can't tell whether this defines the answer.
'judge regularly gets into debt using' is the wordplay.
'regularly gets into' means one should take alternating letters.
'using' is an anagram indicator (the letters used in a different way).
The alternating letters of 'judge' are 'ug'.
'ug'+'debt'='ugdebt'
'ugdebt' anagrammed gives 'BUDGET'.
Can you help me to learn more?
(Other definitions for budget that I've seen before include "Financial estimate" , "occasion for speech" , "Cheap" , "Chancellor's proposals" , "Plan for expenditure and fund allocation" .)