Displaying large column in tabular form

Hello,
I'm trying to display a large column (4000 characters) in a tabular form (it's NOT editable) along with 5 or 6 other not so long columns. What I'd like to do is to maybe display the first 50 or so characters and then when the user hovers over the field it displays the whole field, or maybe make it a popup LOV where the display value is the first 50 characters and then the popup displays the entire 4000 characters for that field. I'm not having any luck with that trying to write the LOV query but just get the value for the current row in the query. Does anyone have any ideas on the best way to do this?
Any help would be most appreciated.
Thanks,
Mark

Andy,
I much appreciate the suggestions.
I made the folllowing modification to my query:
SELECT
rif.coll_sequence,
'<span title="' || rif.finding || '">...</span>' as "FINDING"
FROM
review_item_finding rif;
but I get the following error when running the page:
report error:
ORA-01489: result of string concatenation is too long
the FINDING field is 4000 characters. when I replace the column name finding with substr(finding,1,500) it works. perhaps there is a size limitation on the sql statement itself?
also, when i hover over the field it looks like it's just displaying the first 80 or so characters. i don't have any carriage return/line feeds in my data so perhaps that's why only the first 80 or so characters are displayed when hovering?

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