It's perfect to be ensconced in here beside a log fire (5)
I believe the answer is:
ideal
'it's perfect' is the definition.
(similar in meaning)
'be ensconced in here beside a log fire' is the wordplay.
'IDEAL' is hidden in amongst the letters.
But, I'm unsure how this is indicated.
'to' is the link.
Can you help me to learn more?
(Other definitions for ideal that I've seen before include "Just perfect, couldn't be better" , "Model of ethical behaviour" , "Conceptual" , "Model of perfection" , "that can't be bettered?" .)