Zigzagged
With 33-Down, part of it is now a desert
When repeated, Cult Jam singer
Vegetation in underwater forests
Usually disappointed one
U-verse provider
Trot, say
Tied
Thorough investigation
Think alike
Test pattern
Sure-footed critters
Stress
Start of something big?
Square figure
Spring bloomer
Sport that hints at this puzzle's theme
Split-resistant wood
Spinner in a numbers game?
Source of tweets
Source of flowing water
Sorbonne student
Some TVs
Skilled
Side in a decades-long war
See 61-Down
Sci. concerned with biodiversity
Satisfied sounds
Sales figure
Quirky
Quiets, in a way
Purpose
Pulitzer-winning author James
Pub pick
Pruning ideology?
Presidential nickname
Peseta replacer
Party time, casually
Pants part
Opposite of bumpy
Online service option
One eschewing leather, perhaps
Offhand greeting
Not a hit, usually
Multiple Emmy-winning legal drama
Mountain air
Missouri river
Long bout
Large soda bottle label word
It's heard in a herd
Insulated cable
Hive member
Hills of Rome, e.g
Henry Ford, e.g
Hammock?
Go on
Former constellation that included Vela (the sails)
Fair-hiring agcy
Exec's reminder
Excavating aid
Elaborate in design
Eddie __, detective involved in the actual 'French Connection'
Early or late hr., depending
Driver's gadget
Draped garment
Discounted buy
Daring exploit
Composer Khachaturian
Comforter
Chisholm Trail city
Bird that's a national symbol
Beginning to cure?
Beginning
Aviation pioneer Sikorsky
'What __ you thinking?'
'Don't waste your money on that pendant'?
'CSI' setting
'Chasing Pavements' singer