What does the cryptic crossword clue "Number one weakling not quite getting hold of sheep (6)" mean?

The wordplay uses a deletion. EWE (synonym="=sheep") in WEE (synonym="WEE") = WEEWEE The answer is WEEWEE.

Number one weakling not quite getting hold of sheep (6)

Independent Cryptic #11725 | 17 Down | 2024-05-09 flower