hard, strong
high
Their captain was sent off for a high tackle on Cooper.

bad, crunching, late (all BrE)
cover, scything, sliding (all BrE)
brave, skilful (both BrE)
flying
A security guard brought him down with a flying tackle.

football (AmE), rugby

execute (BrE), make
break (AmE)
miss

tackle from
a crunching tackle from her opponent

tackle against, tackle on (BrE)
He bruised his arm making a tackle against the Browns.
He was booked for a tackle from behind on Morris.

in a/the tackle
She lost the ball in a tackle.

defensive, offensive
left, right
nose

play
draft

properly (BrE), seriously
directly (esp. BrE), head-on
The drugs problem has to be tackled head-on.

effectively, successfully

attempt to, try to
help (to)
fail to
We are failing to tackle the key issues.

with
The problem is being tackled with a range of measures.

tackle sb to the floor, tackle sb to the ground (both AmE)

hard
He can run fast and tackle hard.

Tackle is used with these nouns as the subject:
firefighter

Tackle is used with these nouns as the object:
blaze, challenge, corruption, crime, crisis, debt, deficit, disorder, intruder, issue, matter, opponent, pollution, problem, question, racism, shortage, spread, subject, task, topic, truancy, unemployment, vandalism