Here are the possible solutions for first arrival clue
Answer
Clue
Relevancy
abba
Clue
Pop group whose first Top 40 album was, appropriately, "Arrival"
Definition
a Syrian cloth of goat's or camel's hair; an outer garment made of it, also ABA, ABAYA
aborigine
Clue
First arrival
Definition
a member of the original (indigenous) population of a region, also ABORIGEN, ABORIGIN, ABORIGINAL
eldest
Clue
First arrival
Definition
the oldest of a set of e.g. children
fun
Clue
First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f