Monuments in honour of medics (5)
I believe the answer is:
tombs
'monuments' is the definition.
(monuments to the dead)
'in honour of medics' is the wordplay.
'in honour of' becomes 'to' ('to' can mean dedicated to or in honour of).
'medics' becomes 'MBs' (people with Bachelor of Medicine degrees).
'to'+'mbs'='TOMBS'
(Other definitions for tombs that I've seen before include "Evidence of failure" , "Sepulchres" , "monuments" , "Places of burial" .)