26 down
Fish
is
brought
up
by
line
at
depth
(4)
Fish is brought up by line at depth (4)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
The definition is Fish — specifically a small herring. Take "is" and reverse it ("brought up") to get SI, then tack on L (line) and D (depth).