Source of roughage for entire repast takes money (9,5)
I believe the answer is:
wholemeal bread
'money' is the definition.
I know nothing about this answer so I can't judge whether this works.
'source of roughage for entire repast' is the wordplay.
'source of roughage' becomes 'bread' (I can't justify this - if you can you should believe this answer much more).
'for' is a charade indicator (letters next to each other) (I've seen this in other clues).
'entire' becomes 'whole' (similar in meaning).
'repast' becomes 'meal' (synonyms).
'whole'+'meal'='wholemeal'
'bread' after 'wholemeal' is 'WHOLEMEAL BREAD'.
'takes' is the link.
Can you help me to learn more?
(Other definitions for wholemeal bread that I've seen before include "part of healthy diet?" , "food" .)