Possible Clues:

• Begin to flourish
• Flower of a fruit-bearing plant
• Flowers (on tree, shrub)
• There's no blooming gain in the mob up there
• There's nothing to lose in what's in there before there's fruit
• Grow
• Open, as a bud
• Blow recalling Norah Lofts's climber, perhaps
• Blooming well no gain and nothing more inside
• Deficit in prosperous time - none the less, there's attractive growth