Antlered animal the thing with one furry foot raised (6)
I believe the answer is:
wapiti
'antlered animal' is the definition.
(I've seen this in another clue)
'thing with one furry foot raised' is the wordplay.
'thing' becomes 'it'.
'with' says to put letters next to each other.
'one' becomes 'i' (Roman numeral).
'furry foot' becomes 'paw' (I've seen this in another clue).
'raised' says the letters should be written backwards (going up in a down clue).
'it'+'i'+'paw'='itipaw'
'itipaw' in reverse letter order is 'WAPITI'.
'the' acts as a link.
(Other definitions for wapiti that I've seen before include "Animal" , "North American native" , "Red deer - I paw it (anag)" , "Large N. Am. red deer" , "Deer with much-branched antlers" .)