Unusually, there may be two possible answers for a pair of intersecting clues:
44A
Style of art such as that of Jackson Pollock (8, 13); and
46D
Import (7).
The respective answers are:
ABSTRACT EXPRESSIONISM/MEANING and
ABSTRACT EXPRESSIONIST/TRADING.
I feel that ABSTRACT EXPRESSIONISM/MEANING are a better match to the clues. Any comments?