A small, mischievous sprite, or a malevolent supernatural creature, somewhat comparable to a demon but smaller and less powerful.
A mischievous child.
A baby Tasmanian devil.
A young shoot of a plant, tree etc.
A scion, offspring; a child.
Something added to, or united with, another, to lengthen it out or repair it, such as an addition to a beehive; a feather inserted in a broken wing of a bird; or a length of twisted hair in a fishing line.
To plant or engraft.
To graft, implant; to set or fix.
To engraft (feathers) into a bird's wing.
To eke out, strengthen, enlarge.
All clues having "IMPS"
for an answer:
You can find a list of possible crossword clues for IMPS below.