The term 'ALLOW ACCESS' can be broken down into three crossword solutions: ADMIT (5 letters), UNBAR (5 letters), and LETIN (5 letters). ADMIT means to accept or acknowledge something, such as a fact or an opinion. Unbar means to remove a bar or obstruction from a door or window. Letin is a combination of the words 'LET' and 'IN, ' which means to allow someone or something to enter. Together, these three solutions indicate that the phrase 'ALLOW ACCESS' means to permit someone or something to enter by removing any obstructions.