Uruguay originally stole Thailand’s torpedo carrier? (1-4)
I believe the answer is:
u-boat
'torpedo carrier?' is the definition.
'uruguay originally stole thailand's' is the wordplay.
'originally' indicates taking the first letters.
'stole' becomes 'boa' (I've seen this before).
'thailand' becomes 't' (abbreviation on car registration plates).
The initial letter of 'uruguay' is 'u'.
'u'+'boa'+'t'='U-BOAT'
(Other definitions for u-boat that I've seen before include "German submarine of WW2" , "German WW 2 sub" , "Sea vessel" , "Take pool exercise" , "Submersible warship of WWII" .)