'ExplosiveArrow':
  type: item
  material: arrow
  display name: Explosive Arrow
  recipe: #Thunderstone Shard #TNT #Arrow
  - i@air|i@4613|i@air 
  - i@air|i@46|i@air 
  - i@air|i@262|i@air 
  no_id: false 
  bound: false

6x arrows in a format where I can customize the recipe as above.

 Desired effects are:

a lightning strike and explosion on the target entity / block
a fire to ignite in a 3x3 area if flat, or the object to be alight if a wall and for a struck entity to burn
a growth / bonemeal effect in a 3x3 area or where struck and for a struck entity to be poisoned
a water source block to be placed for # seconds in the air block the arrow is stuck then reverted to air and for a struck entity to be slowed
for a struck enemy to lose satiation / suffer hunger and suffer the wither effect
a fire to ignite in a 3x3 area if flat, or the object to be alight if a wall and for a struck entity to burn and suffer the blind effect