Here at Cascade Towers, the building process is simple: start at the foundation and build upwards. Don't forget to use the materials you just built to inform the next level. With all this building, who knows what we'll see at the top!
[See original puzzle for grid]
COLUMN A:
Gently sponges (2 wds.)
Pun _ h _ t' _   _ _ _
The ___ (group led by _ _ gi _ _   Ge _ _ _ e)
COLUMN B:
Big tubs
_ _ r _ _ insky of note
F _ _ _ 's k _ n
"___, bu _   _ h _ _" (2 wds.)
"____   _ _ c _ i _ _"
COLUMN C:
Part of a drum kit
G _ _ m _ _   _ ubs (hyph.)
_ _ _ g   _ r   _ _ ck
He fought C _ _ _ _
COLUMN D:
Blends, as cement and sand to make a foundation
"_ _ _ y t _ _ e!" speaker of movies
Audible evidence of a   _ _ p p _ _ _ lem
_ _ ca _ _ of fiction (hyph.)
COLUMN E:
Romantic flowers
Its first president was _ _ dhar  _ engh _ _
"Community" character whose name implies _ _ r _ _ _ _ _ s
(5 5)