Business group needing a long-term CEO to be sacked (12)

I believe the answer is:

conglomerate

I'm a little stuck... Click here to teach me more about this clue!

'business' is the definition.
(conglomerate is a kind of business)

'a long-term ceo to be sacked' is the wordplay.
'to be sacked' indicates an anagram.
'a'+'long'+'term'+'ceo'='alongtermceo'
'alongtermceo' anagrammed gives 'CONGLOMERATE'.

'group needing' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for conglomerate that I've seen before include "Big diverse firm" , "Multinational" , "Large company formed by merger" , "Coarse-grained rock; large corporation" , "Large corporation formed through mergers" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.