Bed's erected to accommodate current patient (5)
I believe the answer is:
stoic
'patient' is the definition.
(I've seen this before)
'bed's erected to accommodate current' is the wordplay.
'bed's' becomes 'cots' (cot is a kind of bed).
'erected' says the letters should be written backwards.
'to accommodate' is an insertion indicator.
'current' becomes 'i' (symbol for electric current).
'cots' back-to-front is 'stoc'.
'stoc' enclosing 'i' is 'STOIC'.
(Other definitions for stoic that I've seen before include "the original Zeno?" , "Greek in school" , "One who endures hardship uncomplainingly" , "Solemn ceremony" , "Philosopher like Marcus Aurelius" .)