Restoring large Miro is a complicated process (9)
I believe the answer is:
rigmarole
'complicated process' is the definition.
'rigmarole' can be an answer for 'process' (rigmarole is a kind of process). I'm not certain of the 'complicated' bit.
'restoring large miro' is the wordplay.
'restoring' indicates an anagram (I've seen 'restore' mean this).
'large'+'miro'='largemiro'
'largemiro' anagrammed gives 'RIGMAROLE'.
'is a' acts as a link.
Can you help me to learn more?
(Other definitions for rigmarole that I've seen before include "Long, rambling story" , "Complex procedure" , "boring series" , "red tape?" , "Rambling account" .)