Benefit from meals on wheels on a regular basis (7)
I believe the answer is:
welfare
'benefit' is the definition.
(types of social security)
'meals on wheels on a regular basis' is the wordplay.
'meals' becomes 'fare'.
'on' says to put letters next to each other.
'on a regular basis' means one should take alternating letters.
The alternate letters of 'wheels' are 'wel'.
'fare' after 'wel' is 'WELFARE'.
'from' is the link.
(Other definitions for welfare that I've seen before include "Your well being, or help from the state" , "Social provision by state" , "Health, prosperity, etc" , "Well-being" , "Governmental provision of economic assistance" .)