Any process that activates or increases the frequency, rate or extent of spindle assembly.
Synonyms:
exact_synonym:
positive regulation of bipolar spindle biosynthesis; positive regulation of bipolar spindle formation; positive regulation of spindle biosynthesis; positive regulation of spindle formation; up regulation of bipolar spindle biosynthesis; up regulation of bipolar spindle formation; up regulation of spindle assembly; up regulation of spindle biosynthesis; up regulation of spindle formation; upregulation of bipolar spindle biosynthesis; upregulation of bipolar spindle formation; upregulation of spindle assembly; upregulation of spindle biosynthesis; upregulation of spindle formation
narrow_synonym:
activation of bipolar spindle biosynthesis; activation of bipolar spindle formation; activation of spindle assembly; activation of spindle biosynthesis; activation of spindle formation