Clue: Newcomer joining table turned up in vain taking in a point (9)
Answer: OGANESSON
Explanation: Definition: Newcomer joining table
[*turned up*] **<=NO GO** ("in vain") *taking in* **A NESS** ("a point") 
*Oganesson (atomic number 118) is a recent addition to the periodic table, hence "newcomer joining table".