Course of treatment, for example, received by injured miner (7)
I believe the answer is:
regimen
'course of treatment' is the definition.
(I've seen this before)
'example received by injured miner' is the wordplay.
'example' becomes 'eg'.
'received by' means one lot of letters goes inside another.
'injured' indicates anagramming the letters.
'miner' with letters rearranged gives 'rimen'.
'eg' going into 'rimen' is 'REGIMEN'.
'for' acts as a link.
(Other definitions for regimen that I've seen before include "prescribed treatment" , "Disciplined system" , "Recommended course" , "Merge in for prescribed way of life" , "Course of diet, therapy" .)