The most common and most likely answer to this crossword clue is the 5 letter word SANDY
S
A
N
D
Y
More clues leading to the result SANDY
- Edges of Selsey beach may be described thus
- Gritty characters in boats and yachts
- Name of son, also Yankee
- Yellowish lips of secretary?
- Gritty Scot
- Some youth leaders like Miami Beach
- Gritty Murray is behind second
- New York’s tip caught by unfortunate storm
- Lyle looks like he’s been in the bunker
- . Yellowish-beige, for example, seen around New Delhi initially
Buddy explains!

The straight part
We know that "Koufax" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case koufax = sandy.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SANDY mean?
SANDY adjective- Covered with sand.
- Sprinkled with sand.
- Containing sand.
- Like sand, especially in texture.
- Having the colour of sand.