What does the cryptic crossword clue "Tool turned to burglarious purpose (4)" mean?

The definition is "burglarious purpose". The wordplay uses an anagram. anagram of TOOL = LOOT; definition: "burglarious purpose" The answer is LOOT.

Tool turned to burglarious purpose (4)

Guardian Cryptic #26478 | 24 Across | 2015-01-26 flower