Cryptic crossword clue
Underwear lifted in search for terrorist weapon 3,4

The most common and most likely answer to this crossword clue is the 3 plus 4 letter word CAR BOMB

I've seen this crossword clue in The Times
C
A
R
B
O
M
B

Buddy explains!

The straight part
We know that "terrorist weapon" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case terrorist weapon = car bomb.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does CAR BOMB mean?

CAR BOMB verb
  1. To attack with a car bomb

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