Fiery spirit of monk bringing round power tool (10)
I believe the answer is:
salamander
'fiery spirit' is the definition.
(I've seen this before)
'monk bringing round power tool' is the wordplay.
'monk' becomes 'lama' (as in the Dalai Lama).
'bringing round' means one lot of letters goes inside another.
'power tool' becomes 'sander' (sander is a kind of power tool).
'lama' placed within 'sander' is 'SALAMANDER'.
'of' is the link.
(Other definitions for salamander that I've seen before include "Beast" , "Long-tailed amphibian" , "Lizard-like creature" , "portable stove" , "Mythical fire lizard" .)