What does the cryptic crossword clue "Steal a work by Piet Mondrian? (8)" mean?

The definition is "Steal / a work by Piet Mondrian?". The wordplay uses a double definition. Double definition The answer is ABSTRACT.

Steal a work by Piet Mondrian? (8)

Times Cryptic #29066 | 1 Across | 2024-11-05 flower