To cope so clumsily with medical instrument (8)
I believe the answer is:
otoscope
'medical instrument' is the definition.
(otoscope is a kind of medical instrument)
'to cope so clumsily' is the wordplay.
'clumsily' indicates anagramming the letters.
'to'+'cope'+'so'='tocopeso'
'tocopeso' anagrammed gives 'OTOSCOPE'.
'with' is the link.
(Other definitions for otoscope that I've seen before include "Device for looking in ears" , "Lug instrument" , "Instrument for inspecting ears" , "It's used to examine ears" , "instrument coming close to a canal" .)