Keep and feed an animal with a docked tail (5)
I believe the answer is:
board
'keep' is the definition.
(thesaurus)
'animal with a docked tail' is the wordplay.
'animal' becomes 'boar' (I've seen this before).
'with' says to put letters next to each other.
'tail' says to take the final letters.
The last letter of 'docked' is 'd'.
'boar'+'d'='BOARD'
'and feed an' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for board that I've seen before include "panel" , "See 13 across" , "Supervisory committee" , "Collection of directors" , "See 21 Down" .)