The term 'PRODUCTIVE ONE' can be described by three words: WORKHORSE (9 letters), MAKER (5 letters), and DOER (4 letters). A WORKHORSE is someone who works hard and consistently, often with little recognition. A MAKER is someone who creates something, either tangible or intangible. Finally, a DOER is someone who takes action and gets things done. Together, these three words describe someone who is productive and efficient in their work.