The most common and most likely answer to this crossword clue is the 8 letter word RETROFIT
I've seen this crossword clue in The Times
R
E
T
R
O
F
I
T
More clues leading to the result RETROFIT
- Engineers needing time with advantage not initially getting extra component
- Keep interrupting row about updated component
- Install new parts, strong girder finally put up over it
- Update tif?
- Characters in riot fret about something modern being introduced
- To make money, about time to replace plumbing for a start and install mod cons
- Back in good health, add new parts
Buddy explains!

The straight part
We know that "updated component" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case updated component = retrofit.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 RETROFIT mean?
RETROFIT noun- Something that has been retrofitted
- The act of retrofitting
- To add or substitute new parts or components to some device, structure etc., that were not previously available; to modernize
- To fix an older version (or older versions) as part of the same process of fixing the newest version; to backport
- Of, relating to, or being a retrofit