Cryptic crossword clue
No ball carried by university rugby forward, that’s clear 7

The most common and most likely answer to this crossword clue is the 7 letter word UNBLOCK

I've seen this crossword clue in Independent
U
N
B
L
O
C
K

Buddy explains!

The straight part
We know that "clear" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case clear = unblock.
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 UNBLOCK mean?

UNBLOCK verb
  1. To remove or clear a block or obstruction from.
  2. To free or make available.
  3. In whist, to throw away a high card so as not to interrupt one's partner's long suit.

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