Constrained by expenditure, has he recycled material? (6)
I believe the answer is:
rehash
'recycled material?' is the definition.
(I've seen this before)
'constrained by expenditure has he' is the wordplay.
'REHASH' is hidden in amongst the letters.
However, I'm not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for rehash that I've seen before include "Work over (used material)" , "Use again (changing little)" , "makeshift changes?" , "Present again with just the odd change" , "Recycled material" .)