What is the crossword answer for the clue: Quick on the uptake

APT - a 3 letter word may be the answer you are looking for!

KEEN - a 4 letter word may be the answer you are looking for!

AGILE - a 5 letter word may be the answer you are looking for!

ALERT - a 5 letter word may be the answer you are looking for!

SMART - a 5 letter word may be the answer you are looking for!

ASTUTE - a 6 letter word may be the answer you are looking for!

BRAINY - a 6 letter word may be the answer you are looking for!

SHARP - a 5 letter word may be the answer you are looking for!

Quick on the uptake

3 Character Answers:

APT

4 Character Answers:

KEEN

5 Character Answers:

AGILE

ALERT

SHARP

SMART

6 Character Answers:

ASTUTE

BRAINY