The most common and most likely answer to this crossword clue is the 8 letter word SHELLING
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The straight part
We know that "Getting out of Hull" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case getting out of hull = shelling.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 SHELLING mean?
SHELLING verb- To remove the outer covering or shell of something.
- To bombard, to fire projectiles at, especially with artillery.
- To disburse or give up money, to pay. (Often used with out).
- To fall off, as a shell, crust, etc.
- To cast the shell, or exterior covering; to fall out of the pod or husk.
- To switch to a shell or command line.
- To form shallow, irregular cracks (in a coating).
- To form a shelling.
- An artillery bombardment.
- The removal of the shell from a nut, pea etc.
- Grain from which the husk has been removed.
- An ordering of the facets of a boundary complex such that the intersection of each facet (other than the first) with the union of all preceding facets is homeomorphic to a ball or sphere. See Shelling (topology)
- Shallow, irregular cracks that appear on the surface of a coating such as plaster or mortar.