Idly moving to the insurers — that’s perfect! (7)
I believe the answer is:
idyllic
'perfect' is the definition.
(similar in meaning)
'idly moving to the insurers' is the wordplay.
I cannot quite see how this works, but
an anagram of 'idly' is 'idyl' which is located in the answer.
This explanation may well be incorrect...
'that's' is the link.
Can you help me to learn more?
(Other definitions for idyllic that I've seen before include "Charming, picturesque" , "Delightful in every respect" , "Blissful, peaceful" , "Delightful in all respects" , "Blissfully peaceful" .)