20 down
Become
keen
on
second
opinion
although
it
lacks
weight
(4,2)
Become keen on second opinion although it lacks weight (4,2)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
The definition here is Become keen on, meaning to develop a fondness for something. "Second opinion" gives us TAKE TWO, and then "lacks weight" tells us to drop the W (a standard abbreviation for weight), which neatly leaves us with TAKE TO.