Answer: keeper

AnswerCrossword Clue
KEEPERYellowcard song for finders?
KEEPERWord with gate or inn
KEEPERLegal catch for Walton
KEEPERZoo man
KEEPERFinder?
KEEPERApiarist, e.g.
KEEPERBig enough fish for an angler
KEEPERCustodian
KEEPERBig enough fish
KEEPERLarge fish, maybe, to a fisher
KEEPERBig-enough catch
KEEPERFish of sufficient size
KEEPERFish large enough to be legally caught
KEEPER"Am I my brother's ...?"
KEEPERAngler's delight
KEEPERPartner worth marrying
keepercaught fish large enough to be retained
keeperperson responsible for another
keeperowner or operater of a business (usually in combination)
keepermaintenance person (often in combination)
keepera guard, as at a prison
keeperone that keeps (to retain in ones possession)
keepersomething that secures
keepersomething or someone worth hanging on to
KEEPER"Am I my brother's ..?"
KEEPERZoo or book follower
KEEPERLarge enough fish
KEEPERFish that's big enough
KEEPERLegal-sized fish
KEEPERFisherman's prize
KEEPERBig fish, to a fisherman
KEEPERQuarterback option
KEEPERSomething to hold on to
KEEPERThe one that didn't get away
KEEPERZoo worker
KEEPERPrison guard
KEEPERGuardian
KEEPERSomething worth saving
KEEPERSomething stored
KEEPERSomething to hold