The term 'Blowing Hot and Cold' is an idiom that means to be indecisive or to change one's opinion frequently. The crossword solutions for this term are 'IRRESOLUTE' (10 letters) and 'FANS' (4 letters). IRRESOLUTE means to be uncertain or wavering in opinion, while FANS are devices used to circulate air. Therefore, the phrase 'Blowing Hot and Cold' can be interpreted as being uncertain or wavering in opinion, just like a fan blowing hot and cold air.