Tree with catkins (5)
'tree with catkins' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for alder that I've seen before include "Shrub or tree with cone-like fruits" , "Tree or shrub of the birch family" , "New Forest resident" , "A tree for Adler" , "Forward movement" .)
'tree with catkins' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for hazel that I've seen before include "Catkin shrub" , "Light brown; nut" , "wood" , "Catkin-bearing tree" , "Tree; girl's name" .)
(Other definitions for popular that I've seen before include "In demand" , "Hot" , "Democratic - of general appeal" , "Pleasing to many" , "Widely admired" .)