The term 'FULL DIVE' can be solved by the crossword solution 'GAINER' (6 letters). 'FULL DIVE' is a term used in virtual reality, which refers to a user completely immersing themselves in a simulated environment. It is also known as 'deep DIVE' or 'total immersion'. The term 'GAINER' is used to describe someone who is actively seeking out new experiences and knowledge. This could be related to virtual reality, as someone who is a 'GAINER' may be more likely to take part in a FULL DIVE experience.