The most common and most likely answer to this crossword clue is the 9 letter word INTEGRATE
I've seen this crossword clue in The Daily Telegraph
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More clues leading to the result INTEGRATE
- Where coals are not hot, mix with others
- Combine eg nitrate compounds
- Mix in, where fire is lit? Not hard
- Join unfortunate gent coming in hopping mad
- Mix in the jar hard to get out
- Combine treating complex with medicine, ultimately
- Combine to replant giant tree
- Join in — note pinched by thankless person
- Fuse molten granite alien’s turned over
- Come together in Spain after goal upset
Buddy explains!
The straight part
We know that "Join in" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case join in = integrate.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does INTEGRATE mean?
INTEGRATE verb- To form into one whole; to make entire; to complete; to renew; to restore; to perfect.
- To include as a constituent part or functionality.
- To indicate the whole of; to give the sum or total of; as, an integrating anemometer, one that indicates or registers the entire action of the wind in a given time.
- To subject to the operation of integration; to find the integral of.
- To desegregate, as a school or neighborhood.
- To combine compatible elements in order to incorporate them.