The most common and most likely answer to this crossword clue is the 6 letter word TUBING
T
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Buddy explains!

The straight part
We know that "Lots of pipes" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lots of pipes = tubing.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 TUBING mean?
TUBING verb- To supply with, or enclose in, a tube.
- To ride an inner tube.
- To intubate.
- Tubes, considered as a group
- A length of tube, or a system of tubes
- The recreation of riding down a river on an inner tube
- The recreation of tobogganing down a snowy slope or toboggan run on an inner tube