How to insert a large value into a clob column in Oracle?

Is it possible to use SQuirreL to insert a large value (> 4000 chars)
into a clob column in Oracle?  I apparently have my table and column
configured to accept larger values, but apparently using a literal value
of > 4000 chars won't work.

My actual application will use Hibernate and PreparedStatements, but I
need to prototype this strategy first in a SQL browser.

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