Steamy or covered in dirt maybe (6)
I believe the answer is:
torrid
'steamy' is the definition.
(thesaurus)
'or covered in dirt maybe' is the wordplay.
'covered in' is an insertion indicator.
'maybe' is an anagram indicator.
'dirt' is an anagram of 'trid'.
'or' going into 'trid' is 'TORRID'.
(Other definitions for torrid that I've seen before include "Scorching hot" , "Scorchingly hot" , "Impassioned, burning" , "Hot and emotional" , "Blistering - steamy" .)