Grow rapidly (7)
'grow rapidly' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for mushroom that I've seen before include "Pinkish-brown colour" , "grow quickly" , "Increase with remarkable rapidity" , "Snowball; fungus" , "expand rapidly" .)
'grow rapidly' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for burgeon that I've seen before include "Grow, rapidly increase" , "bud" , "Shoot" , "sprout" , "Produce buds - flourish" .)