It's worth a lot in management (3)
I believe the answer is:
gem
'it's worth' is the definition.
I can't judge whether this defines the answer.
'a lot in management' is the wordplay.
'a lot' indicates the answer is hidden within the clue (a lot of the letters from the clue).
'GEM' is hidden within 'in management'.
Can you help me to learn more?
(Other definitions for gem that I've seen before include "Valuable stone" , "Precious or semi-precious stone" , "A jewel or precious stone" , "Valued person; jewel" , "Kindness; comfort (German)" .)